Zobrazeno 1 - 10
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pro vyhledávání: '"Valea A"'
Autor:
Herrero-Valea, M., Simon-Felix, E.
Black holes in Lorentz violating gravity enjoy a double horizon structure which resembles that of the Kerr solution in General Relativity. Moreover, when a scalar field with a modified dispersion relation is coupled to these backgrounds, an on-shell
Externí odkaz:
http://arxiv.org/abs/2410.01370
Singular regular points often arise in differential equations describing physical phenomena such as fluid dynamics, electromagnetism, and gravitation. Traditional numerical techniques often fail or become unstable near these points, requiring the use
Externí odkaz:
http://arxiv.org/abs/2409.20150
While the robustness of Hawking radiation in the presence of UV Lorentz breaking is well-established, the Unruh effect has posed a challenge, with a large literature concluding that even the low-energy restoration of Lorentz invariance may not be suf
Externí odkaz:
http://arxiv.org/abs/2312.03070
Since their proposal, Lorentz violating theories of gravity have posed a potential threat to black hole thermodynamics, as superluminal signals appeared to be incompatible with the very black hole notion. Remarkably, it was soon realized that in such
Externí odkaz:
http://arxiv.org/abs/2310.01472
Publikováno v:
JCAP11(2023)001
Partial differential equations exhibiting an anisotropic scaling between space and time -- such as those of Horava-Lifshitz gravity -- have a dispersive nature. They contain higher-order spatial derivatives, but remain second order in time. This is i
Externí odkaz:
http://arxiv.org/abs/2307.13041
Autor:
Herrero-Valea, M.
Horava gravity is a proposal for a UV completion of gravitation obtained by endowing the space-time manifold with a preferred foliation in space-like hypersurfaces. This allows for a power-counting renormalizable theory free of ghosts, at the cost of
Externí odkaz:
http://arxiv.org/abs/2307.13039
Using a quantum tunneling derivation, we show the resilience of Hawking radiation in Lorentz violating gravity. In particular, we show that the standard derivation of the Hawking effect in relativistic quantum field theory can be extended to Lorentz
Externí odkaz:
http://arxiv.org/abs/2303.14235
Publikováno v:
Open Medicine, Vol 6, Iss 3, Pp 251-262 (2011)
Externí odkaz:
https://doaj.org/article/715feb7229bf40b28da38510f8cba3f4
Publikováno v:
Phys. Rev. D 106, 064055 (2022)
Black holes in Lorentz violating gravity, such as Einstein--Aether or Horava--Lifshitz Gravity, are drastically different from their general relativistic siblings. Although they allow for superluminal motion in their vicinity, they still exhibit an a
Externí odkaz:
http://arxiv.org/abs/2207.08848
Scattering amplitudes mediated by graviton exchange display IR singularities in the forward limit. This obstructs standard application of positivity bounds based on twice subtracted dispersion relations. Such divergences can be cancelled only if the
Externí odkaz:
http://arxiv.org/abs/2205.13332