Thermal Entanglement Between Atoms in the Four-Cavity Linear Chain Coupled by Single-Mode Fibers

Jun Biao Wang; Guo Feng Zhang

doi:10.1007/s10773-018-3780-9

Thermal Entanglement Between Atoms in the Four-Cavity Linear Chain Coupled by Single-Mode Fibers

Jun Biao Wang
, Guo Feng Zhang^*

^*此作品的通讯作者

物理学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

2 引用（Scopus）

摘要

Natural thermal entanglement between atoms of a linear arranged four coupled cavities system is studied. The results show that there is no thermal pairwise entanglement between atoms if atom-field interaction strength f or fiber-cavity coupling constant J equals to zero, both f and J can induce thermal pairwise entanglement in a certain range. Numerical simulations show that the nearest neighbor concurrence C_AB is always greater than alternate concurrence C_AC in the same condition. In addition, the effect of temperature T on the entanglement of alternate qubits is much stronger than the nearest neighbor qubits.

源语言	英语
页（从-至）	2585-2597
页数	13
期刊	International Journal of Theoretical Physics
卷	57
期	9
DOI	https://doi.org/10.1007/s10773-018-3780-9
出版状态	已出版 - 1 9月 2018

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title = "Thermal Entanglement Between Atoms in the Four-Cavity Linear Chain Coupled by Single-Mode Fibers",

abstract = "Natural thermal entanglement between atoms of a linear arranged four coupled cavities system is studied. The results show that there is no thermal pairwise entanglement between atoms if atom-field interaction strength f or fiber-cavity coupling constant J equals to zero, both f and J can induce thermal pairwise entanglement in a certain range. Numerical simulations show that the nearest neighbor concurrence CAB is always greater than alternate concurrence CAC in the same condition. In addition, the effect of temperature T on the entanglement of alternate qubits is much stronger than the nearest neighbor qubits.",

keywords = "Concurrence, Coupled cavities system, Quantum thermal entanglement",

author = "Wang, \{Jun Biao\} and Zhang, \{Guo Feng\}",

note = "Publisher Copyright: {\textcopyright} 2018, Springer Science+Business Media, LLC, part of Springer Nature.",

year = "2018",

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T1 - Thermal Entanglement Between Atoms in the Four-Cavity Linear Chain Coupled by Single-Mode Fibers

AU - Wang, Jun Biao

AU - Zhang, Guo Feng

PY - 2018/9/1

Y1 - 2018/9/1

N2 - Natural thermal entanglement between atoms of a linear arranged four coupled cavities system is studied. The results show that there is no thermal pairwise entanglement between atoms if atom-field interaction strength f or fiber-cavity coupling constant J equals to zero, both f and J can induce thermal pairwise entanglement in a certain range. Numerical simulations show that the nearest neighbor concurrence CAB is always greater than alternate concurrence CAC in the same condition. In addition, the effect of temperature T on the entanglement of alternate qubits is much stronger than the nearest neighbor qubits.

AB - Natural thermal entanglement between atoms of a linear arranged four coupled cavities system is studied. The results show that there is no thermal pairwise entanglement between atoms if atom-field interaction strength f or fiber-cavity coupling constant J equals to zero, both f and J can induce thermal pairwise entanglement in a certain range. Numerical simulations show that the nearest neighbor concurrence CAB is always greater than alternate concurrence CAC in the same condition. In addition, the effect of temperature T on the entanglement of alternate qubits is much stronger than the nearest neighbor qubits.

KW - Concurrence

KW - Coupled cavities system

KW - Quantum thermal entanglement

UR - https://www.scopus.com/pages/publications/85047126280

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JO - International Journal of Theoretical Physics

JF - International Journal of Theoretical Physics

IS - 9

ER -

Thermal Entanglement Between Atoms in the Four-Cavity Linear Chain Coupled by Single-Mode Fibers

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