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searching for Null infinity 13 found (21 total)

Peeling theorem (245 words) [view diff] exact match in snippet view article find links to article

to null infinity. Let γ {\displaystyle \gamma } be a null geodesic in a spacetime ( M , g a b ) {\displaystyle (M,g_{ab})} from a point p to null infinity

Construction of a complex null tetrad (3,466 words) [view diff] exact match in snippet view article find links to article

Newman–Penrose descriptions. For null infinity, the classic Newman-Unti (NU) tetrad is employed to study asymptotic behaviors at null infinity, l a ∂ a = ∂ r := D

Mass in general relativity (3,255 words) [view diff] exact match in snippet view article find links to article

imposing a certain gauge condition, one can define the Bondi energy at null infinity. In a way, the ADM energy measures all of the energy contained in spacetime

Raychaudhuri equation (1,756 words) [view diff] exact match in snippet view article find links to article

causal past of null infinity. Such boundaries are generated by null geodesics. The affine parameter goes to infinity as we approach null infinity, and no caustics

Hawking energy (555 words) [view diff] exact match in snippet view article find links to article

depending on whether the surface is asymptotic to spatial infinity or null infinity. Mass in general relativity Inverse mean curvature flow Page 21 of Schoen

FRW/CFT duality (313 words) [view diff] exact match in snippet view article find links to article

the terminal phase has a Penrose diagram shaped like a hat for future null infinity. A Euclidean Liouville quantum field theory is assumed to reside there

Hans Adolf Buchdahl (1,180 words) [view diff] exact match in snippet view article find links to article

general relativity, e.g., for the study of gravitational radiation and null infinity. In gravitational theory, Buchdahl's contribution on Einstein field

Binary black hole (3,928 words) [view diff] exact match in snippet view article find links to article

at retarded time U. f is a surface integral of the news function at null infinity varied by solid angle. The Arnowitt–Deser–Misner (ADM) energy, or ADM

Pasterski–Strominger–Zhiboedov triangle (750 words) [view diff] case mismatch in snippet view article find links to article

"Symmetries of Asymptotically Flat Four-Dimensional Spacetimes at Null Infinity Revisited". Physical Review Letters. 105 (11): 111103. arXiv:0909.2617

Black hole information paradox (8,329 words) [view diff] case mismatch in snippet view article find links to article

Shrivastava, Pushkal (18 February 2021). "The Holographic Nature of Null Infinity". SciPost Physics. 10 (2): 041. arXiv:2002.02448. Bibcode:2021ScPP.

General relativity (22,670 words) [view diff] exact match in snippet view article find links to article

to infinity by gravitational waves, the result is the Bondi mass at null infinity. Just as in classical physics, it can be shown that these masses are

Gaurav Khanna (physicist) (1,960 words) [view diff] exact match in snippet view article

nearly extreme black hole hair along with its measurement at future null infinity as a transient phenomenon. Furthermore, he studied about the stability

Non-expanding horizon (3,938 words) [view diff] exact match in snippet view article find links to article

Petrov type is known; also, at some typical boundary regions such as null infinity, timelike infinity, spacelike infinity, black hole horizons and cosmological