Geometric phase under the Unruh effect with intermediate statistics  

作　　者：Jun Feng Jing-Jun Zhang Qianyi Zhang 冯俊;张精俊;张倩怡(School of Physics,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]School of Physics,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Chinese Physics B》2022年第5期46-52,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.12075178);Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2018JM1049)。

摘　　要：Utilizing the geometric phase(GP)acquired in a quantum evolution,we manifest the thermality and quantum nature of the Unruh effect of an accelerating detector.We consider an UDW detector coupling to a conformal field in Minkowski spacetime,whose response spectrum exhibits an intermediate statistics of(1+1)anyon field.We find that comparing to an inertial moving detector,the GP in accelerating frame is modified after the nonunitary evolution of the detector due to the Unruh effect.We show that such modification can distinguish the different thermalizing ways of the detector,which depends on the scaling dimension of the conformal primary field.Finally,we estimate the difference between the GP under the Unruh radiation and that in a thermal bath for a static observer,which reveals the quantum origin of the Unruh effect rather than a conventional thermal noise.

关 键 词：open quantum system geometric phase Unruh effect 

分 类 号：O413[理学—理论物理]