Relativistic motion on Gaussian quantum steering for two-mode localized Gaussian states  

作　　者：Xiao-Long Gong Shuo Cao Yue Fang Tong-Hua Liu 龚小龙;曹硕;方越;刘统华(School of Physics and Optoelectronic,Yangtze University,Jingzhou 434023,China;Department of Astronomy,Beijing Normal University,Beijing 100875,China;Advanced Institute of Natural Sciences,Beijing Normal University at Zhuhai,Zhuhai 519087,China)

机构地区：[1]School of Physics and Optoelectronic,Yangtze University,Jingzhou 434023,China [2]Department of Astronomy,Beijing Normal University,Beijing 100875,China [3]Advanced Institute of Natural Sciences,Beijing Normal University at Zhuhai,Zhuhai 519087,China

出　　处：《Chinese Physics B》2022年第5期189-196,共8页中国物理B（英文版）

基　　金：Project supported by National Key R&D Program of China(Grant No.2017YFA0402600);the National Natural Science Foundation of China(Grant Nos.11690023,11373014,and 11633001);Beijing Talents Fund of Organization Department of Beijing Municipal Committee of the CPC;the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB23000000);the Interdiscipline Research Funds of Beijing Normal University。

摘　　要：Realistic quantum systems always exhibit gravitational and relativistic features.In this paper,we investigate the properties of Gaussian steering and its asymmetry by the localized two-mode Gaussian quantum states,instead of the traditional single-mode approximation method in the relativistic setting.We find that the one-side Gaussian quantum steering will monotonically decrease with increasing observers of acceleration.Meanwhile,our results also reveal the interesting behavior of the Gaussian steering asymmetry,which increases for a specific range of accelerated parameter and then gradually approaches to a finite value.Such finding is well consistent and explained by the well-known Unruh effect,which could significantly destroy the one-side Gaussian quantum steering.Finally,our results could also be applied to the dynamical studies of Gaussian steering between the Earth and satellites,since the effects of acceleration are equal to the effects of gravity according to the equivalence principle.

关 键 词：relativistic quantum information quantum nonlocality Unruh effect 

分 类 号：O413[理学—理论物理]