Quantum probe of Hořava-Lifshitz gravity

Gürtuğ, Özay; Mangut, Mert

doi:10.1063/1.5001114

Cited by 2 publications

(2 citation statements)

References 34 publications

(54 reference statements)

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“…It is shown that the quantum Friedmann-Lemaitre-Robertson-Walker universe, which is non-asymptotically flat and filled with radiation in the context of Horava-Lifshitz gravity is quantum mechanically regular. A similar result is obtained in a black hole solution that admits naked singularity in Horava-Lifshitz gravity in [37].…”

Section: Introductionsupporting

confidence: 79%

On thermal fluctuations and quantum regularities of (R, ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

Mangut,

Gürtuğ,

Sakallı

2024

Phys. Scr.

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We discuss the corrected thermodynamics and naked singularity structure of the topological static spherically symmetric solution in F(R, G) - gravity coupled with Born-Infeld - like nonlinear electrodynamics. Solutions admitting black holes with constant topological Euler density is analyzed in view of various thermodynamical variables. The inclusion of logarithmic correction to the entropy is extended to the other thermodynamical variables and the contribution of corrected variables are displayed on various plots. The stability of black hole under the effect of thermal variables is also studied. As a second scope of this study, solutions admitting timelike naked singularity are probed with bosonic and fermionic quantum wave packets to see if the singularity is quantum mechanically regular or not. In this context, the evolution of these probes remains well-defined if the corresponding spatial Hamiltonian operator is essentially self-adjoint. Our calculations reveal that when the singularity is probed with specific wave modes involving spin - 0 and spin - ½ quantum wave packets, the corresponding wave operators turn out to be essentially self-adjoint, which in turn implies unique well-defined time evolution.

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Section: Introductionsupporting

confidence: 79%

On thermal fluctuations and quantum regularities of (R, ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

Mangut,

Gürtuğ,

Sakallı

2024

Phys. Scr.

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“…For a solar mass KS black hole, its horizon exists only if ω ≥ ω c ≈ 2.293 × 10 −11 cm −2 . In quantum regime, however, KS geometry turns out to be regular [32], which may safely avoid the naked singularity problem. Now, we can rewrite Eq.…”

mentioning

confidence: 99%

Neutron star structure in Hořava-Lifshitz gravity

Kim

Park

et al. 2021

Phys. Rev. D

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We present interesting aspects of a modified theory of gravity called Hořava-Lifshitz (HL) gravity that can be constrained by the phenomenological and observational prospects in terms of neutron star (NS) structure and equation-of-state models. The deformation in HL gravity from general relativity (GR) can change typical features of the NS structure. In this Letter, we investigate the NS structure by deriving Tolman-Oppenheimer-Volkoff equation in HL gravity. We find that a NS in HL gravity with larger radius and heavier mass than a NS in GR remains stable without collapsing into a black hole.

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Quantum probe of Hořava-Lifshitz gravity

Cited by 2 publications

References 34 publications

On thermal fluctuations and quantum regularities of (R, ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

On thermal fluctuations and quantum regularities of (R, ) gravity black holes with constant topological Euler density in nonlinear electrodynamics

Neutron star structure in Hořava-Lifshitz gravity

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