Entanglement of arbitrary spin modes in expanding universe

被引：10
作者：
Mohammadzadeh, Hosein [1 ]
Ebadi, Zahra [1 ,2 ]
Mehri-Dehnavi, Hossein [3 ]
Mirza, Behrouz [2 ]
Darabad, Robabeh Rahimi [4 ,5 ]
机构：
[1] Univ Mohaghegh Ardabili, Dept Phys, Ardebil, Iran
[2] Isfahan Univ Technol, Dept Phys, Esfahan 8415683111, Iran
[3] Babol Univ Technol, Dept Phys, Babol Sar 4714871167, Iran
[4] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada
[5] Islamic Azad Univ, Sci & Res Branch, Dept Phys, Tehran, Iran
来源：
QUANTUM INFORMATION PROCESSING | 2015年 / 14卷 / 12期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Entanglement; Expanding universe; Spin-1; Spin-3/2; Fermion; Boson; QUANTUM; PARTICLES; TELEPORTATION; RELATIVITY; STATES;
D O I：
10.1007/s11128-015-1125-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Pair particle creation is a well-known effect in the domain of field theory in curved space-time. The behavior of the generated entanglement due to expanding universe is very different for spin-0 and spin-1/2 particles. We study spin-1 particles in Friedmann-Robertson-Walker (FRW) space-time using Duffin-Kemmer-Petiau equation and spin-3/2 particles in FRW space-time using Rarita-Schwinger equation. We find that in expanding universe, the behavior of the generated entanglement for spin-1 particles is the same as the behavior of the generated entanglement for spin-0 particles. Also, we find that spin-3/2 and spin-1/2 particles have the same behavior for the generated entanglement in expanding universe. We conclude that the absolute values of spins do not play any role and the differences in the behavior of the generated entanglement in expanding universe are due to bosonic or fermionic properties.
引用
收藏
页码：4787 / 4801
页数：15
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