Zobrazeno 1 - 10
of 743
pro vyhledávání: '"Zhang Baocheng"'
Publikováno v:
Eur. Phys. J. C 84,1111 (2024)
We explore the entanglement dynamics of two detectors undergoing uniform acceleration and circular motion within a massive scalar field, while also investigating the influence of the anti-Unruh effect on entanglement harvesting. Contrary to the conve
Externí odkaz:
http://arxiv.org/abs/2411.02994
Autor:
Zhang, Hongbin, Zhang, Baocheng
Recent studies using the Unruh-DeWitt detector model have revealed the quantum signatures of black hole mass superposition. In this paper, we use the equal-time density-density correlation function to reinvestigate the mass superposition of BTZ black
Externí odkaz:
http://arxiv.org/abs/2406.17327
Autor:
Pan, Yongjie, Zhang, Baocheng
Publikováno v:
Phys. Rev. D 109, 125018 (2024)
We investigate the transition amplitudes of the Unruh-DeWitt detector within the Schwarzschild spacetime background and discover gravity-induced transparency phenomena akin to the earlier acceleration-induced transparency. This is confirmed through c
Externí odkaz:
http://arxiv.org/abs/2406.01227
Autor:
Zhang, Baocheng
Publikováno v:
Results in Physics 57 (2024) 107345
Entanglement can be generated through the gravitational interaction between two massive bodies that are initially in a product state. This shows that the gravitational field is quantum. When the third massive body is introduced and the gravitational
Externí odkaz:
http://arxiv.org/abs/2401.14621
Publikováno v:
Phys. Lett. B 848 (2024) 138416
We investigate the transition behavior of the two-level atom as the Unruh-DeWitt detector outside a noncommutative black hole. When the mass of the black hole is small enough, the difference between the commutative and noncommutative black hole can b
Externí odkaz:
http://arxiv.org/abs/2312.16822
Publikováno v:
SCIENCE CHINA Physics, Mechanics & Astronomy 67, 260411 (2024)
When atoms are accelerated in the vacuum, entanglement among atoms will degrade compared with the initial situation before the acceleration. In this paper, we propose a novel and interesting view that the lost entanglement can be recovered completely
Externí odkaz:
http://arxiv.org/abs/2311.04610
Autor:
Yan, Jiatong, Zhang, Baocheng
Based on the freely-falling Unruh-Dewitt model, we study the influence of gravitational waves on the quantum multibody states, i.e. the twin-Fock (TF) state and the mixture of Dicke states. The amount of entanglement of quantum many-body states decre
Externí odkaz:
http://arxiv.org/abs/2311.02615
Publikováno v:
Applied Physics Express 16, 042002 (2023)
Vectorial polarized fields of light has been applied to detect the rotational velocity by the rotational Doppler effect, but the measurement was made for the rotation of a single-particle system. When the rotational surface is rough, the scattered ve
Externí odkaz:
http://arxiv.org/abs/2305.02119
Publikováno v:
Commun. Theor. Phys. 75, 035302 (2023)
We demonstrate an optical realization for the rotating BTZ black hole using the recent popular photon fluid model in an optical vortex but with a new proposed expression for the optical phase. We also give the numerical realization for the optical vo
Externí odkaz:
http://arxiv.org/abs/2303.15661
Autor:
Zhang, Hongbin, Zhang, Baocheng
Publikováno v:
Eur. Phys. J. C 83, 233 (2023)
We investigate the effect of superradiance shielding for the analogue rotating black holes simulated by optical vortices by calculating the radial motion of massless particles in such spacetime background. We add the conditions $E
Externí odkaz:
http://arxiv.org/abs/2303.14418