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Quantum Fisher information flow and entanglement in pair coherent states

机译:对相干态的量子Fisher信息流和纠缠

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摘要

Realistic quantum systems are the main part of quantum information technology, which causes the rapid destruction of crucial quantum properties. Therefore, the unavoidable interaction between quantum systems, understanding the dynamics of entanglement indicators and finding the correlation between different phenomena may stimulate great interest. In this article the quantum Fisher information and nonlocal correlation between a single qubit and two-mode optical field initially in pair coherent states have investigated. We examine the impact of the qubit motion and intensity dependent function on the flow of quantum Fisher information and quantum entanglement during the time evolution. We discuss the relationship between quantum Fisher information flow and quantum entanglement in the case of moving and unmoving single qubit.
机译:现实的量子系统是量子信息技术的主要部分,它会导致关键量子特性的迅速破坏。因此,量子系统之间不可避免的相互作用,理解纠缠指标的动力学以及发现不同现象之间的相关性可能会引起人们极大的兴趣。在本文中,研究了量子费舍尔信息和最初在成对相干态下单量子位和双模光场之间的非局部相关性。我们研究了量子位运动和强度依赖函数在时间演化过程中对量子Fisher信息流和量子纠缠的影响。我们讨论了在移动和不移动单个量子位的情况下量子Fisher信息流与量子纠缠之间的关系。

著录项

  • 来源
    《Optical and quantum electronics》 |2014年第8期|1055-1064|共10页
  • 作者

    S. Abdel-Khalek;

  • 作者单位

    Mathematics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt, The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Miramare, Trieste, Italy, Mathematics Department, Faculty of Science, Taif University, Taif, Saudi Arabia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Quantum Fisher information; Entanglement; Two-mode pair coherent states; Qubit motion;

    机译:量子Fisher信息;纠缠双模对相干态;量子位运动;

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