Communications in Theoretical Physics ›› 2015, Vol. 64 ›› Issue (06): 676-682.

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Feedback of Non-Markovian Quantum Dynamics in Dimer System: the Effect of Correlated Environments and Temperature

ZHU Qin-Sheng1, DING Chang-Chun1, WU Shao-Yi1, LAI Wei2   

  1. 1 School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China;
    2 Experimental Middle School of Chengdu Economic and Technology Development Zone, Chengdu 610054, China
  • Received: 2015-04-07 Revised: 2015-07-06 Published: 2015-12-01
  • Contact: DING Chang-Chun E-mail:ccding626@163.com
  • Funding Information: 

    Supported by the Fundamental Research Funds for the Central Universities under Grants No. ZYGX2012J046

Abstract: In this work, we research the non-Markovian dynamical process of the dimer system and the effect of the interactional environments for the information feedback under different temperature T. Not only the functional relation of the trace distance and the fidelity are obtained, but also the changing properties of the fidelity and the measure quantity N (φ) which are used to quantify the degree of the non-Markovian process are discussed as a function of the interactional strength q between the environments. These results show a possible method which can preserve the information and enhance the distinguishability of the pair of states in decohering environments.

Key words: non-Markovian process, measure, decoherence

PACS numbers: 

  • 03.65.Yz