两个不同能隙探测器做圆周运动的纠缠收获

李润虎 ( 西安邮电大学 )

https://doi.org/10.37155/2717-5197-0611-80

Abstract

本文研究在无质量标量场中,一对具有不同能隙且轨迹为圆周的两能级原子的纠缠收获现象。 首先,纠缠收获作为Δd/σ的函数时,存在一个临界能隙Ωs,当ΩAΩs 时,不同ΔΩ/ΩA曲线 的交点会消失,ΔΩ/ΩA越大,纠缠收获越少。Ωs随着加速度的增大而减小。然后随着ΔΩ/ΩA的增大, 在Δd/σ较小时,我们发现纠缠收获总是从一个非零的值减小到零。在ΩA较小但Δd/σ很大时,纠缠收获 会在较小的ΔΩ/ΩA为零,然后增大再减小到零。

Keywords

真空涨落;纠缠收获;Unruh效应

Full Text

PDF

References

[1]Summers S J and Werner R. The vacuum violates
Bell’s inequalities [J]. Physics Letters A, 1985, 110(5): 257-259.
[2]Valentini A. Non-local correlations in quantum
electrodynamics [J]. Physics Letters A, 1991 153(6-7): 321-325.
[3]Martín-Martínez E, Brown E G, Donnelly W and Kempf
A. Sustainable entanglement production from a quantum field,
Phys. Rev. A, 2013, 88: 052310.
[4]Salton G, Mann R B and Menicucci N C. Acceleration_x0002_assisted entanglement harvesting and rangefinding, New J.
Phys., 2015, 17: 035001.
[5]Henderson L J, Henniga R A, Mann R B, Smith A R
H and Zhang J. Harvesting entanglement from the black hole
vacuum [J]. Classical and Quantum Gravity, 2018, 35(21):
21LT02.
[6]Henderson L J, Hennigar R A, Mann R B, Smith A R
H and Zhang J. Entangling detectors in anti-de Sitter space [J].
Journal of High Energy Physics, 2019, 05: 178.
[7]Cong W, Tjoa E and Mann R B. Entanglement
harvesting with moving mirrors [J]. Journal of High Energy
Physics, 2019, 06: 021.
[8]Koga Jun-ichirou, Maeda K and Kimura G.
Entanglement extracted from vacuum into accelerated UnruhDeWitt detectors and energy conservation [J]. Physics Review
D, 2019 100(6): 065013.
[9]Hu H, Zhang J and Yu H. Harvesting entanglement by
non-identical detectors with different energy gaps, Journal of
High Energy Physics, 2022, 05, 112.
[10]Liu Z, Zhang J and Yu H. Harvesting correlations
from vacuum quantum felds in the presence of a refecting
boundary, Journal of High Energy Physics, 2023, 11, 184.
[11]Zhang J and Yu H. Entanglement harvesting for
Unruh-DeWitt detectors in circular motion [J]. Physics
Review D, 2020, 102(6): 065013.

Copyright © 2024 李润虎 Creative Commons License Publishing time:2024-06-01
This work is licensed under a Creative Commons Attribution 4.0 International License