Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Ted Jacobson"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-29 (2023)
Abstract Due to a well-known, but curious, minus sign in the Gibbons-Hawking first law for the static patch of de Sitter space, the entropy of the cosmological horizon is reduced by the addition of Killing energy. This minus sign raises the puzzling
Externí odkaz:
https://doaj.org/article/6497ef16e4b94f7fa5f44bbe957c81ff
Autor:
Batoul Banihashemi, Ted Jacobson
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-59 (2022)
Abstract The entropy of a de Sitter horizon was derived long ago by Gibbons and Hawking via a gravitational partition function. Since there is no boundary at which to define the temperature or energy of the ensemble, the statistical foundation of the
Externí odkaz:
https://doaj.org/article/6927156c5d60410cab2b94a7a1def120
Publikováno v:
SciPost Physics, Vol 15, Iss 1, p 023 (2023)
We define a canonical ensemble for a gravitational causal diamond by introducing an artificial York boundary inside the diamond with a fixed induced metric and temperature, and evaluate the partition function using a saddle point approximation. For E
Externí odkaz:
https://doaj.org/article/8709813a374a458d90d9d9fbaf48ca33
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-39 (2018)
Abstract The previously proposed “Complexity=Volume” or CV-duality is probed and developed in several directions. We show that the apparent lack of universality for large and small black holes is removed if the volume is measured in units of the
Externí odkaz:
https://doaj.org/article/764fca43ed484d34b00a81fb6f6fe91c
Publikováno v:
SciPost Physics, Vol 7, Iss 6, p 079 (2019)
The static patch of de Sitter spacetime and the Rindler wedge of Minkowski spacetime are causal diamonds admitting a true Killing field, and they behave as thermodynamic equilibrium states under gravitational perturbations. We explore the extension o
Externí odkaz:
https://doaj.org/article/f9751ddb18424b758b10f2f570a73950
Autor:
Stephen Eckel, Ted Jacobson
Publikováno v:
SciPost Phys
SciPost Physics, Vol 10, Iss 3, p 064 (2021)
SciPost Physics, Vol 10, Iss 3, p 064 (2021)
We revisit the theoretical analysis of an expanding ring-shaped Bose-Einstein condensate. Starting from the action and integrating over dimensions orthogonal to the phonon's direction of travel, we derive an effective one-dimensional wave equation fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9da702da170be6cf5e38d8b14dd6fa0
https://pubmed.ncbi.nlm.nih.gov/35005439
https://pubmed.ncbi.nlm.nih.gov/35005439
Publikováno v:
SciPost Physics, Vol 3, Iss 3, p 022 (2017)
Analog black/white hole pairs, consisting of a region of supersonic flow, have been achieved in a recent experiment by J. Steinhauer using an elongated Bose-Einstein condensate. A growing standing density wave, and a checkerboard feature in the de
Externí odkaz:
https://doaj.org/article/b1ee6b25b2c5414ba5fa9bbdb621b71d
Publikováno v:
Classical and Quantum Gravity. 39:125001
We introduce new methods to numerically construct for the first time stationary axisymmetric black hole solutions in Einstein-aether theory and study their properties. The key technical challenge is to impose regularity at the spin-2, 1, and 0 wave m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5201604c8a2aa3bc511c8333c69c911
https://doi.org/10.1088/1361-6382/ac5053
https://doi.org/10.1088/1361-6382/ac5053
Autor:
Manus R. Visser, Ted Jacobson
Publikováno v:
SciPost Physics, 7(6):079. SciPost Foundation
SciPost Physics, Vol 7, Iss 6, p 079 (2019)
SciPost Physics, Vol 7, Iss 6, p 079 (2019)
The static patch of de Sitter spacetime and the Rindler wedge of Minkowski spacetime are causal diamonds admitting a true Killing field, and they behave as thermodynamic equilibrium states under gravitational perturbations. We explore the extension o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48d7ec29e9b8aa8ac0f11958d72ada0a
https://dare.uva.nl/personal/pure/en/publications/gravitational-thermodynamics-of-causal-diamonds-in-ads(dbe9573d-c8aa-46d8-a37d-f11a95a3b380).html
https://dare.uva.nl/personal/pure/en/publications/gravitational-thermodynamics-of-causal-diamonds-in-ads(dbe9573d-c8aa-46d8-a37d-f11a95a3b380).html
Publikováno v:
Classical and Quantum Gravity. 38:209501
The first law of causal diamonds relates the area deficit of a small ball relative to flat space to the matter energy density it contains. At second order in the Riemann normal coordinate expansion, this energy density should receive contributions fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb7d375e8cd777b46929609e273341f
https://doi.org/10.1088/1361-6382/ac23c5
https://doi.org/10.1088/1361-6382/ac23c5