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pro vyhledávání: '"Closed timelike curve"'
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Autor:
Naresh Dadhich, Sajal Mukherjee
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 5, Pp 1-4 (2021)
European Physical Journal
European Physical Journal
It is known that NUT solution has many interesting features and pathologies like being non-singular and having closed timelike curves. It turns out that in higher dimensions horizon topology cannot be spherical but it has instead to be product of $2$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5ad2bea452ed79c9483f0a412e9cab0
https://doaj.org/article/603bcef2ff174764bfb0306e87579954
https://doaj.org/article/603bcef2ff174764bfb0306e87579954
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-15 (2020)
Journal of High Energy Physics
Journal of High Energy Physics
We generalize our recent analysis [2006.13249] of probe string dynamics to the case of general single-trace $T\bar T$, $J\bar T$ and $T\bar J$ deformations. We show that in regions in coupling space where the bulk geometry is smooth, the classical tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b38cd1c227af454fd8a0aec3704d40a
http://link.springer.com/article/10.1007/JHEP11(2020)057
http://link.springer.com/article/10.1007/JHEP11(2020)057
Autor:
Faizuddin Ahmed
Publikováno v:
Gravitation and Cosmology. 26:265-272
An axially symmetric nonvacuum solution of the Einstein field equations, regular everywhere and free from curvature divergence is presented. The matter-energy content is a the pure radiation field satisfying the energy conditions, and the metric is o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87055d166dfe85cce96fb60681e5da64
https://doi.org/10.1134/s0202289320030020
https://doi.org/10.1134/s0202289320030020
Autor:
Faizuddin Ahmed
Publikováno v:
Gravitation and Cosmology. 26:136-143
A family of type N exact solution of the Einstein's field equations, regular everywhere except on the symmetry axis where it possesses a naked curvature singularity, is present. The stress-energy tensor is of the anisotropic fluid coupled with pure r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::320644eb4423d9e4d9a97c6d53b8fd8c
https://doi.org/10.1134/s0202289320020024
https://doi.org/10.1134/s0202289320020024
Autor:
Miguel Socolovsky
Publikováno v:
Theoretical Physics. 6
We compute the Feynman propagator associated with closed timelike curves in the neighborhood of the ring singularity in the Kerr metric. The propagator is well defined outside r = 0, where it ceases to exist.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcf69d475bda460c4e71d61772febb89
https://doi.org/10.22606/tp.2021.63001
https://doi.org/10.22606/tp.2021.63001
Autor:
Jiří Podolský, Adam Vrátný
We derive a new metric form of the complete family of black hole spacetimes (without a cosmological constant) presented by Plebanski and Demianski in 1976. It further improves the convenient representation of this large family of exact black holes fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7616cbf9e3d8e2b1f165aa062ac368b2
http://arxiv.org/abs/2108.02239
http://arxiv.org/abs/2108.02239
Autor:
Brien C. Nolan
We consider the motion of a gyroscope on a closed timelike curve (CTC). A gyroscope is identified with a unit-length spacelike vector - a spin-vector - orthogonal to the tangent to the CTC, and satisfying the equations of Fermi-Walker transport along
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9101b120020956a616d4c38f8cb77bf
http://arxiv.org/abs/2106.12469
http://arxiv.org/abs/2106.12469
Autor:
Samuel C. Fletcher
Publikováno v:
Foundations of Physics. 50:582-599
Based on three common interpretive commitments in general relativity, I raise a conceptual problem for the usual identification, in that theory, of timelike curves as those that represent the possible histories of (test) particles in spacetime. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97bbea3f71614f697dbe7c588fc0b637
https://doi.org/10.1007/s10701-019-00260-4
https://doi.org/10.1007/s10701-019-00260-4
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-36 (2021)
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-36 (2021)
A solvable current-current deformation of the worldsheet theory of strings on AdS3 has been recently conjectured to be dual to an irrelevant deformation of the spacetime orbifold CFT, commonly referred to as single-trace $$ T\overline{T} $$ T T ¯ .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::721c1f9ba05496bab00b4e80c3f71877
http://repo.scoap3.org/api
http://repo.scoap3.org/api