scholarly journals Lorentz symmetry violation and beyond semiclassical theory in the curved space–time of the arbitrarily dimensional Reissner–Nordström black hole

2021 ◽  
Vol 29 ◽  
pp. 104710
Author(s):  
Zhi-E Liu ◽  
Jie Zhang ◽  
Shu-Zheng Yang
Keyword(s):  
Black Hole ◽  
Lorentz Symmetry ◽  
Space Time ◽  
Semiclassical Theory ◽  
Symmetry Violation ◽  
Curved Space

scholarly journals A self-consistency check for unitary propagation of Hawking quanta

2017 ◽  
Vol 32 (33) ◽  
pp. 1750198 ◽  
Author(s):  
Daniel Baker ◽  
Darsh Kodwani ◽  
Ue-Li Pen ◽  
I-Sheng Yang
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Black Hole ◽  
Negative Answer ◽  
Space Time ◽  
Quantum Field ◽  
Consistency Check ◽  
Curved Space ◽  
Self Consistency ◽  
Double Slit

The black hole information paradox presumes that quantum field theory in curved space–time can provide unitary propagation from a near-horizon mode to an asymptotic Hawking quantum. Instead of invoking conjectural quantum-gravity effects to modify such an assumption, we propose a self-consistency check. We establish an analogy to Feynman’s analysis of a double-slit experiment. Feynman showed that unitary propagation of the interfering particles, namely ignoring the entanglement with the double-slit, becomes an arbitrarily reliable assumption when the screen upon which the interference pattern is projected is infinitely far away. We argue for an analogous self-consistency check for quantum field theory in curved space–time. We apply it to the propagation of Hawking quanta and test whether ignoring the entanglement with the geometry also becomes arbitrarily reliable in the limit of a large black hole. We present curious results to suggest a negative answer, and we discuss how this loss of naive unitarity in QFT might be related to a solution of the paradox based on the soft-hair-memory effect.

Relativistic scalar Aharonov–Bohm effect for a neutral particle under Lorentz symmetry breaking effects in the cosmic string space–time

2019 ◽  
Vol 34 (21) ◽  
pp. 1950116
Author(s):  
K. Bakke ◽  
H. Belich
Keyword(s):  
Cosmic String ◽  
Neutral Particle ◽  
Relativistic Quantum ◽  
Lorentz Symmetry ◽  
Space Time ◽  
Maxwell Theory ◽  
Symmetry Violation ◽  
Quantum Phases ◽  
Bohm Effect ◽  
Aharonov Bohm

We search for relativistic quantum phases for a Dirac neutral particle with a permanent magnetic dipole moment in the cosmic string space–time under the effects of the violation of the Lorentz symmetry. This general relativity background is built based on the modified Maxwell theory coupled to gravity. Hence, we analyze analogues of the scalar Aharonov–Bohm effect for neutral particles in two different scenarios of the Lorentz symmetry violation in the cosmic string space–time.

Hawking radiation of Reissner-Nordström de Sitter Black Hole with a Global Monopole derived from modified Hamilton-Jacobi equation

2020 ◽  
Author(s):  
Zhi-E Liu ◽  
Xia Tan ◽  
Yu-Zhen Liu ◽  
Bei Sha ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Black Hole ◽  
Hawking Radiation ◽  
Jacobi Equation ◽  
Lorentz Violation ◽  
Physical Nature ◽  
Space Time ◽  
Global Monopole ◽  
De Sitter ◽  
Curved Space ◽  
Hamilton Jacobi Equation

The tunneling characteristics at cosmological horizon and event horizon of Reissner-Nordström de Sitter black hole with a global monopole are studied by using the modified Lorentz violation scalar field equation in curved space-time. Firstly, we get the modified Hamilton-Jacobi equation by semi-classical approximation, then the Hawking radiation and thermodynamical properties of Reissner-Nordström de Sitter black hole with a global monopole are computed based on the modified Hamilton-Jacobi equation. Our results show that Lorentz violation can lead to lower Hawking temperature and higher entropy of the black hole at the same time. This work can improve the understanding on the physical nature of Lorentz violation in curved space-time.

Modification to tunneling radiation of arbitrary spin fermions in stationary axisymmetric Sen black hole space–time

2020 ◽  
Vol 98 (11) ◽  
pp. 999-1003
Author(s):  
YuZhen Liu ◽  
Bei Sha ◽  
Xia Tan ◽  
Zhie Liu ◽  
Jie Zhang
Keyword(s):  
Black Hole ◽  
Dispersion Relation ◽  
Lorentz Violation ◽  
Arbitrary Spin ◽  
Particle Dynamics ◽  
Space Time ◽  
Tunneling Radiation ◽  
Curved Space ◽  
Physical Quantities ◽  
Horizon Temperature

Considering the modified Lorentz dispersion relation, combined with the Dirac equation and Rarita–Schwinger equation of fermions in stationary axisymmetric Sen black hole space–time, the fermion tunneling radiation of the black hole is modified accurately, and meaningful physical quantities such as the modified fermion tunneling rate, event horizon temperature, and entropy of the black hole are obtained. The discussion of the conclusions shows that the effect of the Lorentz dispersion relation and Lorentz violation theory on particle dynamics must be considered in curved space–time during the study of quantum theory and Hawking tunneling radiation.

Path integrals and the solution of the Schwinger model in curved space-time

1986 ◽  
Vol 33 (8) ◽  
pp. 2262-2266 ◽  
Author(s):  
J. Barcelos-Neto ◽  
Ashok Das
Keyword(s):  
Path Integrals ◽  
Space Time ◽  
Curved Space ◽  
Schwinger Model

scholarly journals Area Entropy and Quantized Mass of Black Holes from Information Theory

Entropy ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 858
Author(s):  
Dongshan He ◽  
Qingyu Cai
Keyword(s):  
Information Theory ◽  
Black Hole ◽  
Black Hole Entropy ◽  
Quantum Corrections ◽  
Compton Wavelength ◽  
Information Theoretic ◽  
Curved Space ◽  
Thermodynamic Entropy ◽  
Hole Area ◽  
The Relationship

In this paper, we present a derivation of the black hole area entropy with the relationship between entropy and information. The curved space of a black hole allows objects to be imaged in the same way as camera lenses. The maximal information that a black hole can gain is limited by both the Compton wavelength of the object and the diameter of the black hole. When an object falls into a black hole, its information disappears due to the no-hair theorem, and the entropy of the black hole increases correspondingly. The area entropy of a black hole can thus be obtained, which indicates that the Bekenstein–Hawking entropy is information entropy rather than thermodynamic entropy. The quantum corrections of black hole entropy are also obtained according to the limit of Compton wavelength of the captured particles, which makes the mass of a black hole naturally quantized. Our work provides an information-theoretic perspective for understanding the nature of black hole entropy.

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