Journal of Jishou University(Natural Sciences Edition)

• Physics • Previous Articles     Next Articles

Dynamic Characteristics of Quantum Fisher Information ofAtomic System in Amplitude Damping Channel

GUO Xiuli,ZHANG Yanliang,ZHOU Qingping   

  1. (1.College of Physics and Electromechanical Engineering,Jishou University,Jishou 416000,Hunan China;2.College of Software and Service Outsourcing,Jishou University,Zhangjiajie 427000,Hunan China)
  • Online:2017-07-25 Published:2017-08-01


The dynamics of quantum Fisher information of single two-level atomic system in amplitude damping noise environment are investigated,and the evolution characteristics of quantum Fisher information are analyzed.The results show that the quantum Fisher information decreases monotonically and disappears in a Markovian environment of amplitude damping.In the non-Markovian environment of amplitude damping,the quantum Fisher information manifests oscillation charateristics.

Key words: quantum Fisher information, amplitude damping, non-Makovain environment

WeChat e-book chaoxing Mobile QQ