Find link

Find link is a tool written by Edward Betts.

searching for Entropy (astrophysics) 194 found (3863 total)

alternate case: entropy (astrophysics)

Entropy (11,135 words) [view diff] no match in snippet view article find links to article

In thermodynamics , entropy (usual symbol S) is a measure of the number of specific ways in which a thermodynamic system may be arranged, ...
Entropy (information theory) (7,757 words) [view diff] no match in snippet view article find links to article
In information theory , entropy is the average amount of information contained in each message received. Here, message stands for an event ...
Entropy (statistical thermodynamics) (2,462 words) [view diff] no match in snippet view article find links to article
In classical statistical mechanics , the entropy function earlier introduced by Clausius is changed to statistical entropy using ...
Von Neumann entropy (2,142 words) [view diff] no match in snippet view article find links to article
In quantum statistical mechanics , the von Neumann entropy, named after John von Neumann , is the extension of classical Gibbs entropy ...
Differential entropy (2,936 words) [view diff] no match in snippet view article find links to article
Differential entropy (also referred to as continuous entropy) is a concept in information theory that extends the idea of (Shannon) entropy ...
Entropy (arrow of time) (5,091 words) [view diff] no match in snippet view article find links to article
Entropy is the only quantity in the physical sciences (apart from certain rare interactions in particle physics; see below) that requires a ...
Entropy of mixing (4,255 words) [view diff] no match in snippet view article find links to article
In thermodynamics the entropy of mixing is the increase in the total entropy when several initially separate systems of different ...
Entropy (Buffy the Vampire Slayer) (1,719 words) [view diff] no match in snippet view article find links to article
"Entropy" is the 18th episode of season 6 of the television series Buffy the Vampire Slayer . Plot synopsis: The Trio , riding ATVs , pursue ...
Entropy (film) (160 words) [view diff] no match in snippet view article find links to article
Entropy is a 1999 film directed by Phil Joanou , starring Stephen Dorff and featuring the Irish rock band U2 . The film is largely ...
Entropy (order and disorder) (2,880 words) [view diff] no match in snippet view article find links to article
In thermodynamics, entropy is commonly associated with the amount of order, disorder, or chaos in a thermodynamic system . ...
Entropy (computing) (1,833 words) [view diff] no match in snippet view article find links to article
In computing , entropy is the randomness collected by an operating system or application for use in cryptography or other uses that ...
Free entropy (1,156 words) [view diff] no match in snippet view article find links to article
A thermodynamic free entropy is an entropic thermodynamic potential analogous to the free energy . Also known as a Massieu, Planck, or ...
Entropy (classical thermodynamics) (2,440 words) [view diff] no match in snippet view article find links to article
Entropy is a property of thermodynamical systems invented by Rudolf Clausius who named it from the Greek word τρoπή, "transformation". ...
Entropy and life (3,122 words) [view diff] no match in snippet view article find links to article
Research concerning the relationship between the thermodynamic quantity entropy and the evolution of life began around the turn of the ...
Heat death of the universe (2,393 words) [view diff] no match in snippet view article find links to article
In the language of physics , this is when the universe reaches thermodynamic equilibrium (maximum entropy ). The hypothesis of heat ...
Loop entropy (325 words) [view diff] no match in snippet view article find links to article
Loop entropy is the entropy lost upon bringing together two residues of a polymer within a prescribed distance. the entropy varies ...
Black hole thermodynamics (2,202 words) [view diff] no match in snippet view article find links to article
The black hole entropy is proportional to the area of its event horizon A. The fact that the black hole entropy is also the maximal ...
Entropy (anonymous data store) (310 words) [view diff] no match in snippet view article find links to article
Entropy was a decentralized, peer-to-peer communication network designed to be resistant to censorship , much like Freenet . ...
Entropy (1977 board game) (639 words) [view diff] no match in snippet view article find links to article
Entropy is an abstract strategy board game for two players designed by Eric Solomon in 1977. The game is "based on the enternal conflict ...
Social entropy (588 words) [view diff] no match in snippet view article find links to article
Social entropy is a macrosociological systems theory . It is a measure of the natural decay within a social system . It can refer to the ...
Entropy / Send Them (1,086 words) [view diff] no match in snippet view article find links to article
"Send Them/Entropy (Hip Hop Reconstruction from the Ground Up)", is a double A side EP by Asia Born (now known as Lyrics Born) and DJ ...
Measure-preserving dynamical system (1,228 words) [view diff] no match in snippet view article find links to article
Measure-theoretic entropy: The entropy of a partition Q is defined as: H(Q)-\sum_m 1^k \mu (Q_m) \log \mu(Q_m). measure-theoretic entropy of a ...
Entropy (journal) (519 words) [view diff] no match in snippet view article find links to article
Entropy is a peer-reviewed open access scientific journal covering research on all aspects of entropy and information studies . ...
Entropy (comics) (441 words) [view diff] no match in snippet view article find links to article
Entropy is a Cosmic Entity in the Marvel Comics Universe who possesses Nigh-Omnipotence . A representation of Eternity formed at the ...
Krona (comics) (3,555 words) [view diff] no match in snippet view article find links to article
Krona later resurfaces as the manifestation of Entropy itself and battles the New Guardians Cross-universal threat: JLA/Avengers ...
Entropy (1994 board game) (138 words) [view diff] no match in snippet view article find links to article
Entropy is a board game by Augustine Carreno published in 1994 . It is played on a square board divided into 5×5 cells with seven black ...
Sabayon Linux (2,468 words) [view diff] no match in snippet view article find links to article
Sabayon Linux features a rolling release cycle, its own software repository and a package management system called Entropy. ...
Rényi entropy (2,082 words) [view diff] no match in snippet view article find links to article
In information theory , the Rényi entropy generalizes the Shannon entropy , the Hartley entropy , the min-entropy, and the collision entropy ...
Standard molar entropy (498 words) [view diff] no match in snippet view article find links to article
In chemistry , the standard molar entropy is the entropy content of one mole of substance, under standard conditions (not standard ...
Entropy encoding (353 words) [view diff] no match in snippet view article find links to article
In information theory an entropy encoding is a lossless data compression scheme that is independent of the specific characteristics of ...
Entropy of fusion (305 words) [view diff] no match in snippet view article find links to article
The entropy of fusion is the increase in entropy when melting a substance. This is almost always positive since the degree of disorder ...
Entropy of vaporization (205 words) [view diff] no match in snippet view article find links to article
The entropy of vaporization is the increase in entropy upon vaporization of a liquid. This is always positive since the degree of ...
Conditional entropy (801 words) [view diff] no match in snippet view article find links to article
In information theory , the conditional entropy (or equivocation) quantifies the amount of information needed to describe the outcome of a ...
Second law of thermodynamics (10,811 words) [view diff] no match in snippet view article find links to article
The second law of thermodynamics states that in a natural thermodynamic process , there is an increase in the sum of the entropies of the ...
Tsallis entropy (881 words) [view diff] no match in snippet view article find links to article
In physics, the Tsallis entropy is a generalization of the standard Boltzmann–Gibbs entropy . It was introduced in 1988 by Constantino ...
Principle of maximum entropy (3,317 words) [view diff] no match in snippet view article find links to article
The principle of maximum entropy states that, subject to precisely stated prior data (such as a proposition that expresses testable ...
Conformational entropy (500 words) [view diff] no match in snippet view article find links to article
Conformational entropy is the entropy associated with the physical arrangement of a polymer chain that assumes a compact or globular ...
Entropy production (3,411 words) [view diff] no match in snippet view article find links to article
Entropy production determines the performance of thermal machines such as power plants, heat engines, refrigerators, heat pumps, and air ...
Joint entropy (390 words) [view diff] no match in snippet view article find links to article
Joint entropy is a measure of the uncertainty associated with a set of variables . Definition: The joint Shannon entropy of two variables X ...
Configuration entropy (471 words) [view diff] no match in snippet view article find links to article
In statistical mechanics , configuration entropy is the portion of a system's entropy that is related to the position of its constituent ...
Cross entropy (883 words) [view diff] no match in snippet view article find links to article
In information theory , the cross entropy between two probability distribution s measures the average number of bit s needed to identify an ...
Conditional quantum entropy (467 words) [view diff] no match in snippet view article find links to article
The conditional quantum entropy is an entropy measure used in quantum information theory . conditional entropy of classical information theory . ...
Topological entropy (961 words) [view diff] no match in snippet view article find links to article
In mathematics , the topological entropy of a topological dynamical system is a nonnegative real number that is a measure of the ...
Maximum entropy thermodynamics (3,836 words) [view diff] no match in snippet view article find links to article
In physics , maximum entropy thermodynamics (colloquially, MaxEnt thermodynamics ) views equilibrium thermodynamics and statistical ...
Entropy (energy dispersal) (2,723 words) [view diff] no match in snippet view article find links to article
The description of entropy as energy dispersal provides an introductory method of teaching the thermodynamic concept of entropy . ...
Boltzmann's entropy formula (1,089 words) [view diff] no match in snippet view article find links to article
In statistical mechanics , Boltzmann's equation is a probability equation relating the entropy S of an ideal gas to the quantity W, which ...
Maximum entropy probability distribution (1,793 words) [view diff] no match in snippet view article find links to article
In statistics and information theory , a maximum entropy probability distribution is a probability distribution whose entropy is at ...
Residual entropy (589 words) [view diff] no match in snippet view article find links to article
Residual entropy is the difference in entropy between a non-equilibrium state and crystal state of a substance close to absolute zero . ...
Negentropy (1,469 words) [view diff] no match in snippet view article find links to article
The negentropy, also negative entropy or syntropy or extropy or entaxy of a living system is the entropy that it exports to keep its own ...
Entropy rate (330 words) [view diff] no match in snippet view article find links to article
In the mathematical theory of probability , the entropy rate or source information rate of a stochastic process is, informally, the time ...
Min entropy (1,418 words) [view diff] no match in snippet view article find links to article
The min entropy, in information theory , is the smallest of the Rényi family of entropies, corresponding to the most conservative way of ...
Entropy monitoring (468 words) [view diff] no match in snippet view article find links to article
Entropy monitoring is a method of assessing anaesthetic depth . It was commercially developed by Datex-Ohmeda, now part of GE Healthcare . ...
Transfer entropy (875 words) [view diff] no match in snippet view article find links to article
Transfer entropy is a non-parametric statistic measuring the amount of directed (time-asymmetric) transfer of information between two ...
History of entropy (2,759 words) [view diff] no match in snippet view article find links to article
The concept of entropy developed in response to the observation that a certain amount of functional energy released from combustion ...
Software entropy (311 words) [view diff] no match in snippet view article find links to article
A work on software engineering by Ivar Jacobson et al describes software entropy as follows: The second law of thermodynamics , in ...
Binary entropy function (550 words) [view diff] no match in snippet view article find links to article
In information theory , the binary entropy function, denoted H(p) \, or H_\mathrm b(p) \, is defined as the entropy of a Bernoulli process ...
Kullback–Leibler divergence (5,847 words) [view diff] no match in snippet view article find links to article
(also information divergence, information gain , relative entropy, or KLIC; here abbreviated as KL divergence) is a non-symmetric measure ...
Introduction to entropy (3,120 words) [view diff] no match in snippet view article find links to article
The idea of "irreversibility " is central to the understanding of entropy . Everyone has an intuitive understanding of irreversibility (a ...
Entropy power inequality (383 words) [view diff] no match in snippet view article find links to article
In mathematics , the entropy power inequality is a result in information theory that relates to so-called "entropy power" of random ...
Joint quantum entropy (710 words) [view diff] no match in snippet view article find links to article
The joint quantum entropy generalizes the classical joint entropy to the context of quantum information theory . joint quantum entropy is a ...
Volume entropy (607 words) [view diff] no match in snippet view article find links to article
The volume entropy is an asymptotic invariant of a compact Riemannian manifold that measures the exponential growth rate of the volume of ...
Approximate entropy (1,698 words) [view diff] no match in snippet view article find links to article
In statistics , an approximate entropy (ApEn) is a technique used to quantify the amount of regularity and the unpredictability of ...
Beyond Entropy (995 words) [view diff] no match in snippet view article find links to article
Beyond Entropy is a London-based non-profit limited company practicing architecture, urbanism, and cultural analysis. The company evolved ...
Temperature–entropy diagram (360 words) [view diff] no match in snippet view article find links to article
A temperature entropy diagram, or T-s diagram, is used in thermodynamics to visualize changes to temperature and specific entropy during ...
Nonextensive entropy (109 words) [view diff] no match in snippet view article find links to article
Entropy is considered to be an extensive property , i.e., Tsallis has proposed a nonextensive entropy (Tsallis entropy ), which is a ...
Thermodynamics (13,830 words) [view diff] no match in snippet view article find links to article
It defines macroscopic variables, such as internal energy , entropy , and pressure , that partly describe a body of matter or radiation. ...
Quantum relative entropy (1,406 words) [view diff] no match in snippet view article find links to article
In quantum information theory , quantum relative entropy is a measure of distinguishability between two quantum states . relative entropy . ...
Entropy maximization (137 words) [view diff] no match in snippet view article find links to article
An entropy maximization problem is a convex optimization problem of the form: maximize f_0(\vec x) - \sum_i 1^n x_i \log x_i : ...
Cross-entropy method (970 words) [view diff] no match in snippet view article find links to article
The cross-entropy (CE) method attributed to Reuven Rubinstein is a general Monte Carlo approach to combinatorial and continuous multi- ...
Entropy estimation (1,070 words) [view diff] no match in snippet view article find links to article
manifold learning and time delay estimation it is useful to estimate the differential entropy of a system or process, given some observations. ...
Generalized relative entropy (1,304 words) [view diff] no match in snippet view article find links to article
Generalized relative entropy (\epsilon-relative entropy) is a measure of dissimilarity between two quantum states . relative entropy and ...
Entropy (album) (100 words) [view diff] no match in snippet view article find links to article
Entropy is a split vinyl album by Anathallo and Javelins . Each band has one song featured on the album, released in 2005 on Potential ...
Linear entropy (305 words) [view diff] no match in snippet view article find links to article
In quantum mechanics , and especially quantum information theory , the linear entropy or impurity of a state is a scalar defined as: ...
Wehrl entropy (350 words) [view diff] no match in snippet view article find links to article
In quantum information theory, the Wehrl entropy named after A. Wehrl, is a type of quasi- entropy defined for the Husimi Q representation ...
Enthalpy–entropy chart (1,022 words) [view diff] no match in snippet view article find links to article
An enthalpy–entropy chart, also known as the h–s chart or Mollier diagram, plots the total heat against entropy, describing the enthalpy ...
Topological entropy in physics (349 words) [view diff] no match in snippet view article find links to article
The topological entanglement entropy KitaevPreskill LevinWen, usually denoted by γ, is a number characterizing many-body states that possess ...
Enthalpy–entropy compensation (2,555 words) [view diff] no match in snippet view article find links to article
Enthalpy–entropy compensation is a specific example of the compensation effect. The compensation effect refers to the behavior of a series ...
Entropy in thermodynamics and information theory (3,489 words) [view diff] no match in snippet view article find links to article
There are close parallels between the mathematical expressions for the thermodynamic entropy , usually denoted by S, of a physical system in ...
Entropic explosion (400 words) [view diff] no match in snippet view article find links to article
An entropic explosion is an explosion in which the reactant s undergo a large change in volume without releasing a large amount of heat. ...
Generalized entropy index (456 words) [view diff] no match in snippet view article find links to article
The generalized entropy index is a general formula for measuring redundancy in data. The redundancy can be viewed as inequality, lack of ...
Maximum-entropy Markov model (986 words) [view diff] no match in snippet view article find links to article
In machine learning , a maximum-entropy Markov model (MEMM), or conditional Markov model (CMM), is a graphical model for sequence labeling ...
Port Entropy (148 words) [view diff] no match in snippet view article find links to article
Port Entropy is the fourth studio album from Japanese multi-instrumentalist Shugo Tokumaru . It was released on April 21, 2010 on P-Vine ...
Maximum entropy spectral estimation (449 words) [view diff] no match in snippet view article find links to article
Maximum entropy spectral estimation is a method of spectral density estimation . spectral quality based on the principle of maximum entropy . ...
Entropy exchange (116 words) [view diff] no match in snippet view article find links to article
In quantum mechanics , and especially quantum information processing , the entropy exchange of a quantum operation \phi \, acting on the ...
Entropy of activation (122 words) [view diff] no match in snippet view article find links to article
The entropy of activation is one of the two parameters typically obtained from the temperature dependence of a reaction rate, when these ...
The Entropy Effect (871 words) [view diff] no match in snippet view article find links to article
The Entropy Effect is a novel by Vonda N. McIntyre set in the fictional Star Trek Universe. It was originally published in 1981 by ...
The Entropy Tango (243 words) [view diff] no match in snippet view article find links to article
The Entropy Tango is a novel by British fantasy and science fiction writer Michael Moorcock It is part of his long running Jerry Cornelius ...
Boltzmann constant (2,410 words) [view diff] no match in snippet view article find links to article
It has the same dimension (energy divided by temperature ) as entropy . The accepted value in SI units is 1.3806488 | (13) | e-23 | u J ...
Strong Subadditivity of Quantum Entropy (2,934 words) [view diff] no match in snippet view article find links to article
Strong subadditivity of entropy (SSA) was long known and appreciated in classical probability theory and information theory. mechanical ...
Entropy of entanglement (199 words) [view diff] no match in snippet view article find links to article
The entropy of entanglement is an entanglement measure for a bipartite pure state. It is defined as the von Neumann entropy of one of the ...
Paradigm in Entropy (179 words) [view diff] no match in snippet view article find links to article
Paradigm in Entropy is the debut album by the California based metal music group Bleed the Sky . The album was released on April 19, ...
Braunstein-Ghosh-Severini Entropy (139 words) [view diff] no match in snippet view article find links to article
In network theory , the Braunstein-Ghosh-Severini entropy (BGS entropy) of a network is the von Neumann entropy of a density matrix given ...
Non-equilibrium thermodynamics (6,480 words) [view diff] no match in snippet view article find links to article
Another fundamental difference is the difficulty in defining entropy in macroscopic terms for systems not in thermodynamic equilibrium ...
Uncertainty coefficient (619 words) [view diff] no match in snippet view article find links to article
In statistics , the uncertainty coefficient, also called proficiency, entropy coefficient or Theil's U, is a measure of nominal association ...
Entropy (video game) (354 words) [view diff] no match in snippet view article find links to article
Entropy is a space MMORPG video game developed by the Norwegian game studio Artplant The company is known for creating the MMORPG ...
Beyond Undeniable Entropy (230 words) [view diff] no match in snippet view article find links to article
Beyond Undeniable Entropy is the debut EP by Spanish extreme metal band Hybrid , originally released in 2006 by Deadwrong Records a six ...
Recurrence period density entropy (919 words) [view diff] no match in snippet view article find links to article
Recurrence period density entropy (RPDE) is a method, in the fields of dynamical systems , stochastic processes , and time series analysis ...
Orders of magnitude (entropy) (231 words) [view diff] no match in snippet view article find links to article
The following list shows different orders of magnitude of entropy . |− 1)! Value! Item |− 24−24 J K. 1 k ln 2 | 1−1 mole of graphite | ...
Spectral flatness (575 words) [view diff] no match in snippet view article find links to article
Spectral flatness or tonality coefficient also known as Wiener entropy is a measure used in digital signal processing to characterize an ...
Bekenstein bound (2,296 words) [view diff] no match in snippet view article find links to article
NOTOC_In physics , the Bekenstein bound is an upper limit on the entropy S, or information I, that can be contained within a given finite ...
Extremal principles in non-equilibrium thermodynamics (3,992 words) [view diff] no match in snippet view article find links to article
Energy dissipation and entropy production extremal principles are ideas developed within non-equilibrium thermodynamics that attempt to ...
Entropy: A New World View (226 words) [view diff] no match in snippet view article find links to article
Entropy: A New World View is a non-fiction book by Jeremy Rifkin and Ted Howard , with an Afterword by Nicholas Georgescu-Roegen . ...
Sackur–Tetrode equation (820 words) [view diff] no match in snippet view article find links to article
The Sackur–Tetrode equation is an expression for the entropy of a monatomic classical ideal gas which incorporates quantum ...
Laws of thermodynamics (2,659 words) [view diff] no match in snippet view article find links to article
The four laws of thermodynamics define fundamental physical quantities (temperature , energy , and entropy ) that characterize ...
Mutual information (4,519 words) [view diff] no match in snippet view article find links to article
As a result, in this case the mutual information is the same as the uncertainty contained in Y (or X) alone, namely the entropy of Y (or ...
Information theory (5,570 words) [view diff] no match in snippet view article find links to article
The joint entropy of two discrete random variables X and Y is merely the entropy of their pairing: (X, Y). This implies that if X and Y ...
The English Assassin: A Romance of Entropy (365 words) [view diff] no match in snippet view article find links to article
The English Assassin: A Romance of Entropy is a novel by British fantasy and science fiction writer Michael Moorcock http://www. ...
Bousso's holographic bound (299 words) [view diff] no match in snippet view article find links to article
A simple generalization of the Black Hole entropy bound (cf. holographic principle ) to generic systems is that, in quantum gravity , the ...
Minimal-entropy martingale measure (203 words) [view diff] no match in snippet view article find links to article
In probability theory , the minimal-entropy martingale measure (MEMM) is the risk-neutral probability measure that minimises the entropy ...
Holographic principle (3,812 words) [view diff] no match in snippet view article find links to article
The holographic principle was inspired by black hole thermodynamics , which conjectures that the maximal entropy in any region scales with ...
Diversity index (2,713 words) [view diff] no match in snippet view article find links to article
The Shannon entropy quantifies the uncertainty (entropy or degree of surprise) associated with this prediction. It is most often ...
The Entropy Influence Conjecture (251 words) [view diff] no match in snippet view article find links to article
This article describes the The Entropy Influence Conjecture. The Conjecture: For a function f: \-1,1\^n \to \-1,1\ \! the Entropy- ...
Password strength (5,984 words) [view diff] no match in snippet view article find links to article
Entropy as a measure of password strength: password strength in terms of information entropy , measured in bits, a concept from information theory . ...
Temperature (11,740 words) [view diff] no match in snippet view article find links to article
In particular, when the body is described by stating its internal energy U, an extensive variable, as a function of its entropy S, also ...
Information diagram (194 words) [view diff] no match in snippet view article find links to article
entropy , joint entropy , conditional entropy and mutual information Information diagrams are a useful pedagogical tool for teaching and ...
Gibbs free energy (4,326 words) [view diff] no match in snippet view article find links to article
Thus the entropy released or absorbed by the system is actually the entropy that the environment must absorb or release respectively. ...
Hardware random number generator (5,026 words) [view diff] no match in snippet view article find links to article
Estimating entropy: Entropy estimation. There are mathematical techniques for estimating the entropy of a sequence of symbols. None are so ...
Heat (8,382 words) [view diff] no match in snippet view article find links to article
Entropy: Entropy. File:Clausius-1.jpg | Rudolf Clausius In 1856, German physicist Rudolf Clausius , referring to closed systems, in which ...
Self-information (854 words) [view diff] no match in snippet view article find links to article
The term self-information is also sometimes used as a synonym of entropy , i.e. the expected value of self-information in the first sense ...
Multinomial logistic regression (4,779 words) [view diff] no match in snippet view article find links to article
multiclass LR, multinomial regression softmax regression, multinomial logit, maximum entropy (MaxEnt) classifier, conditional maximum entropy model ...
Kolmogorov complexity (4,554 words) [view diff] no match in snippet view article find links to article
Kolmogorov–Chaitin complexity, algorithmic entropy, or program-size complexity) of an object, such as a piece of text, is a measure of ...
Entropic force (1,609 words) [view diff] no match in snippet view article find links to article
In physics , an entropic force acting in a system is a phenomenological force resulting from the entire system's statistical tendency to ...
Hartley function (593 words) [view diff] no match in snippet view article find links to article
It is also known as the Hartley entropy. Hartley function, Shannon's entropy, and Rényi entropy: with the Shannon entropy (as well as with ...
Entropy (Hip Hop Reconstruction from the Ground Up) (480 words) [view diff] no match in snippet view article find links to article
Entropy (Hip Hop Reconstruction from the Ground up), is a B-side of 12" vinyl record that coupling of Asia Born and DJ Shadow and the ...
Ideal gas (2,908 words) [view diff] no match in snippet view article find links to article
Since the entropy is an exact differential , using the chain rule , the change in entropy when going from a reference state 0 to some other ...
Paul Erlich (439 words) [view diff] no match in snippet view article find links to article
His invention of harmonic entropy has received significant attention from music theorists such as William Sethares . It is intended to ...
Thermoeconomics (892 words) [view diff] no match in snippet view article find links to article
Thermoeconomists argue that economic systems always involve matter , energy , entropy , and information Moreover, the aim of many economic ...
Minkowski–Bouligand dimension (1,439 words) [view diff] no match in snippet view article find links to article
The logarithm of the packing and covering numbers are sometimes referred to as entropy numbers, and are somewhat analogous to the concepts ...
Entropic gravity (1,413 words) [view diff] no match in snippet view article find links to article
Entropic gravity is a theory in modern physics that describes gravity as an entropic force ; not a fundamental interaction mediated by ...
Thermodynamic system (4,369 words) [view diff] no match in snippet view article find links to article
system, but only those that can be adequately described by thermodynamic variables, such as temperature, entropy, internal energy, and pressure. ...
Third law of thermodynamics (3,165 words) [view diff] no match in snippet view article find links to article
Entropy is related to the number of possible microstate s, and for a system containing a certain collection of particles, quantum ...
Fluctuation theorem (2,829 words) [view diff] no match in snippet view article find links to article
The fluctuation theorem (FT), which originated from statistical mechanics , deals with the relative probability that the entropy of a ...
Enthalpy (5,119 words) [view diff] no match in snippet view article find links to article
Enthalpy of ideal gases and incompressible solids and liquids does not depend on pressure, unlike entropy and Gibbs energy . ...
Towards the End of the Morning (290 words) [view diff] no match in snippet view article find links to article
A central theme of the book is Dyson's struggle against what he sees as encroaching entropy - indeed, the book was published in the United ...
Entropic uncertainty (1,645 words) [view diff] no match in snippet view article find links to article
In quantum mechanics , information theory , and Fourier analysis , the entropic uncertainty or Hirschman uncertainty is defined as the sum ...
Quantum entanglement (8,962 words) [view diff] no match in snippet view article find links to article
Another way to say this is that while the von Neumann entropy of the whole state is zero (as it is for any pure state), the entropy of ...
Absolute zero (3,284 words) [view diff] no match in snippet view article find links to article
Absolute zero is the lower limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas ...
Rudolf Clausius (1,737 words) [view diff] no match in snippet view article find links to article
In 1865 he introduced the concept of entropy . In 1870 he introduced the virial theorem which applied to heat Life: Clausius was born in ...
Four-vector (5,877 words) [view diff] no match in snippet view article find links to article
Four-entropy : The 4- entropy vector is defined by:\ mathbf s s\mathbf S + \frac\mathbf Q T. where s is the entropy per baryon, and T the ...
Tsallis distribution (293 words) [view diff] no match in snippet view article find links to article
In statistics , a Tsallis distribution is a probability distribution derived from the maximization of the Tsallis entropy under ...
Arithmetic coding (5,339 words) [view diff] no match in snippet view article find links to article
Arithmetic coding is a form of entropy encoding used in lossless data compression . Normally, a string of characters such as the words " ...
Christopher Locke (641 words) [view diff] no match in snippet view article find links to article
Christopher Locke (born November 12, 1947) is a widely read blog ger, author and the editor of the Entropy Gradient Reversals e- ...
Black hole (14,076 words) [view diff] no match in snippet view article find links to article
Entropy and thermodynamics: Black hole thermodynamics. File:BHentropy. svg | The formula for the Bekenstein–Hawking entropy (S) of a black hole ...
H-theorem (3,102 words) [view diff] no match in snippet view article find links to article
ideal gas of molecules As this quantity H was meant to represent the entropy of thermodynamics, the H-theorem was an early demonstration ...
Entropic vector (1,060 words) [view diff] no match in snippet view article find links to article
The entropic vector or entropic function is a concept arising in information theory . Shannon 's information entropy measures and their ...
Energy (8,161 words) [view diff] no match in snippet view article find links to article
where the first term on the right is the heat transferred into the system, expressed in terms of temperature T and entropy S (in which ...
Statistical mechanics (5,173 words) [view diff] no match in snippet view article find links to article
Maximum information entropy : A more elaborate version of the principle of indifference states that the correct ensemble is the ensemble ...
Gibbs paradox (4,832 words) [view diff] no match in snippet view article find links to article
In statistical mechanics , a semi-classical derivation of the entropy that does not take into account the indistinguishability of particles ...
Leanne Frahm (721 words) [view diff] no match in snippet view article find links to article
"Entropy" (1995) in Bonescribes: Year's Best Australian Horror: 1995 (ed. Bill Congreve , Robert Hood )" "Borderline " (1996) in Borderline ...
Psychodynamics (2,708 words) [view diff] no match in snippet view article find links to article
File:Hall Freud Jung in front of Clark 1909. jpg | Front row: Sigmund Freud , G. Stanley Hall , Carl Jung ; Back row: Abraham A. Brill , ...
Entropic security (431 words) [view diff] no match in snippet view article find links to article
Note that in practice entropically-secure encryption algorithms are only "secure" provided that the message distribution possesses high ...
Entropic Communications (1,139 words) [view diff] no match in snippet view article find links to article
In March of 2014, Entropic's CEO Patrick Henry was charged with three misdemeanors: assault, damage of a communication device, and ...
Jude the Entropic Man (613 words) [view diff] no match in snippet view article find links to article
He can also entrance people to allow his entropic powers to turn them to dust. Other versions Paradise X: In the alternate universe commonly ...
Catherine (metalcore band) (477 words) [view diff] no match in snippet view article find links to article
A Call To Entropy: Track listing | 25em " "Reach For The Sky" (Demo) – 0:39 " "Evil Man, Dead Man" (Demo) – 4:00 " "Denigration Makes John Doe ...
Context-adaptive binary arithmetic coding (1,161 words) [view diff] no match in snippet view article find links to article
Context-adaptive binary arithmetic coding (CABAC) is a form of entropy encoding used in the H.264/MPEG-4 AVC and High Efficiency Video ...
Entropic risk measure (464 words) [view diff] no match in snippet view article find links to article
In financial mathematics , the entropic risk measure is a risk measure which depends on the risk aversion of the user through the ...
Context-adaptive variable-length coding (697 words) [view diff] no match in snippet view article find links to article
Context-adaptive variable-length coding (CAVLC) is a form of entropy coding used in H.264/MPEG-4 AVC video encoding. all entropy-coders. ...
Isentropic process (1,516 words) [view diff] no match in snippet view article find links to article
In thermodynamics , an isentropic process or isoentropic process (ισον "equal" (Greek); εντροπία entropy "disorder"(Greek) is one in which ...
Entropic value at risk (1,754 words) [view diff] no match in snippet view article find links to article
Because of its connection with the VaR and the relative entropy, this risk measure is called "entropic value-at-risk". The EVaR was ...
Arrow of time (2,589 words) [view diff] no match in snippet view article find links to article
that nature shows a bias for collapsing wave functions into higher entropy states versus lower ones, and the claim that this is merely due ...
Partial molar property (1,393 words) [view diff] no match in snippet view article find links to article
where P is the pressure, V the volume , T the temperature, and S the entropy . Differential form of the thermodynamic potentials ...
Arcwelder (554 words) [view diff] no match in snippet view article find links to article
Albums : Entropy (Touch and Go, 1996) Everest (Touch and Go, 1999 7" Singles ": "Pint Of Blood" b/w "Define My Life" (Sonic Boom Records, 1988 ...
Thermodynamic databases for pure substances (4,004 words) [view diff] no match in snippet view article find links to article
databases contain information about thermodynamic properties for substances, the most important being enthalpy , entropy , and Gibbs free energy . ...
Carnot cycle (2,759 words) [view diff] no match in snippet view article find links to article
The temperature-entropy diagram : File:CarnotCycle1. illustrated on a temperature-entropy diagram. The cycle takes place between a hot ...
Density matrix (4,083 words) [view diff] no match in snippet view article find links to article
This entropy can increase but never decrease with a projective measurement, however generalised measurements can decrease entropy The ...
Theil index (1,367 words) [view diff] no match in snippet view article find links to article
Theil index T T is the same as redundancy in information theory which is the maximum possible entropy of the data minus the observed entropy. ...
Dissipation (783 words) [view diff] no match in snippet view article find links to article
These processes produce entropy (see entropy production ) at a certain rate. The entropy production rate times ambient temperature gives ...
Beta distribution (34,190 words) [view diff] no match in snippet view article find links to article
alpha \beta (\alpha + \beta + 2) (\alpha + \beta + 3) | entropy \begin matrix\ln\Beta(\alpha,\beta)-(\alpha-1)\psi(\alpha)-(\beta-1)\psi ...
Maxwell's demon (3,537 words) [view diff] no match in snippet view article find links to article
average molecules to the other side, causing the favored side to gradually heat up while the other side cools down, thus decreasing entropy . ...
Heat capacity (13,018 words) [view diff] no match in snippet view article find links to article
capacity relates the logarithmic increase in temperature to the increase in the dimensionless entropy per particle S^* S / Nk , measured in nat s.: ...
Irreversible process (1,843 words) [view diff] no match in snippet view article find links to article
However, because entropy is a state function, the change in entropy of a system is the same whether the process is reversible or ...
Income inequality metrics (6,009 words) [view diff] no match in snippet view article find links to article
As an example, Amartya Sen commented on the Theil index, "given the association of doom with entropy in the context of thermodynamics, it ...
Binomial distribution (3,728 words) [view diff] no match in snippet view article find links to article
kurtosis \frac 1-6p(1-p)np(1-p) | entropy \frac12 \log_2 \big( 2\pi e\, np(1-p) \big) + O \left( \frac 1 n \right) | mgf (1-p + pe^t)^n ...
Reversible process (thermodynamics) (883 words) [view diff] no match in snippet view article find links to article
means of infinitesimal changes in some property of the system without entropy production (i.e. dissipation of energy Due to these ...
List of thermodynamic properties (488 words) [view diff] no match in snippet view article find links to article
Specific Gibbs free entropy | g | J/(kg K) | Gibbs free entropy |\Xi | J/K | entropic) | Grand / Landau potential |\Omega | J | Heat ...
Nat (unit) (415 words) [view diff] no match in snippet view article find links to article
The natural unit of information (symbol nat sometimes also nit or nepit, is a unit of information or entropy , based on natural logarithms ...
Frank L. Lambert (1,585 words) [view diff] no match in snippet view article find links to article
He is known for his advocacy of changing the definition of thermodynamic entropy as "disorder" in US general chemistry texts to its ...
Huffman coding (4,347 words) [view diff] no match in snippet view article find links to article
finding and/or using such a code is called Huffman coding and is a common technique in entropy encoding , including in lossless data compression . ...
Trouton's rule (534 words) [view diff] no match in snippet view article find links to article
Trouton’s rule states that the entropy of vaporization is almost the same value, about 85–88 J K−1 mol−1, for various kinds of liquid s at ...
Chemical potential (3,549 words) [view diff] no match in snippet view article find links to article
Here U is internal energy , H is enthalpy and the entropy , S, is taken to be constant (see History ). Keeping the entropy fixed ...
Hard hexagon model (998 words) [view diff] no match in snippet view article find links to article
urlname HardHexagonEntropyConstant | title Hard Hexagon Entropy Constant Category:Exactly solvable models Category:Statistical mechanics ...
Geometric distribution (1,782 words) [view diff] no match in snippet view article find links to article
entropy \tfrac-(1-p)\log_2 (1-p) - p \log_2 p p\! | mgf \frac pe^t 1-(1-p) e^t\!, for t | char \frac pe^ it 1-(1-p)\,e^ it\! real) | ...
Bernoulli distribution (641 words) [view diff] no match in snippet view article find links to article
kurtosis \frac 1-6pq pq | entropy -q\ln(q)-p\ln(p)\, | mgf q+pe^t\, | char q+pe^ it\, | pgf q+pz\, | fisher \frac 1 p(1-p) | ...
Nicolas Léonard Sadi Carnot (2,926 words) [view diff] no match in snippet view article find links to article
but it was later used by Rudolf Clausius and Lord Kelvin to formalize the second law of thermodynamics and define the concept of entropy . ...
Exergy (7,453 words) [view diff] no match in snippet view article find links to article
In contrast, exergy accounts for the irreversibility of a process due to increase in entropy (see Second Law of Thermodynamics ). ...
Josiah Willard Gibbs (10,093 words) [view diff] no match in snippet view article find links to article
Gibbs's papers from the 1870s introduced the idea of expressing the internal energy U of a system in terms of the entropy  S, in addition ...
Normal distribution (16,396 words) [view diff] no match in snippet view article find links to article
skewness 0 | kurtosis 0 - | entropy \frac12 \ln(2 \pi e \, \sigma^2) | mgf \exp\ \mu t + \frac 1 2\sigma^2t^2 \ | char \exp \ i\mu t - \ ...
First law of thermodynamics (12,501 words) [view diff] no match in snippet view article find links to article
the total amount of heat added to a closed system can be expressed as δ Q T d S where T is the temperature and S the entropy of the system. ...
Unary coding (377 words) [view diff] no match in snippet view article find links to article
Unary coding, sometimes called thermometer code, is an entropy encoding that represents a natural number , n, with n ones followed by a ...
Cardy formula (479 words) [view diff] no match in snippet view article find links to article
In physics Cardy formula is important because it gives the entropy of black holes. only the calculation of the entropy of BTZ black hole s ...
Gibbs' inequality (533 words) [view diff] no match in snippet view article find links to article
In information theory , Gibbs' inequality is a statement about the mathematical entropy of a discrete probability distribution . ...
Thermodynamic temperature (12,397 words) [view diff] no match in snippet view article find links to article
The diffusion of thermal energy: Entropy, phonons, and mobile conduction electrons -: Image:1D normal modes (280 kB).gif | Fig. 4 The ...
Dual total correlation (668 words) [view diff] no match in snippet view article find links to article
In information theory , dual total correlation (Han 1978) or excess entropy (Olbrich 2008) is one of the two known non-negative ...
Loschmidt's paradox (1,505 words) [view diff] no match in snippet view article find links to article
kinetic theory the increase of entropy in an ideal gas from a non-equilibrium state, when the molecules of the gas are allowed to collide. ...