Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Chinese Physics Letters

Quantum Entanglement in a System of Two Spatially Separated Atoms Coupled to the Thermal Reservoir

廖湘萍, 方卯发, 郑小娟, 蔡建武

Published Jan 1, 2006• 0 citations
OpenAlex

Abstract

我们学习在联合到热 resevoir 的二个空间地分开的原子之间的 quuantum 纠纷。系统，原子频率差别和纠纷上的热领域的吝啬的数字的起始的状态的影响被检验。结果证明 of 的最大值纠纷被检验。结果证明纠纷的最大值日益增多地随热噪音的增加被减少。有趣地，甚至当开始在大多数准备的二个原子混合了状态时，二个原子能容易被纠缠。

Related papers

Stationary entanglement of two atoms in a common reservoir

Man, Zhong-xiao, Su +3 more

我们学习与一座普通结构化的水库交往的二个纠缠的原子的动力学。借助于原子动力学的准确溶液，我们显示出原子的起始的纠缠的状态的相对阶段控制的新奇的量干扰。量干扰在套住的激动状态的人口和原子的静止纠纷上有大影响。特别地，我们构造原子静止纠纷能在他们的起始的价值上在下面成长的一个明确的条件。

中国科学通报：英文版•Jan 1, 2013•6 citations

Quantum Entanglement in a System of Two Spatially Separated Atoms Coupled to the Thermal Reservoir

Xiang-Ping Liao, Mao-Fa Fang, Zheng Xiao-Juan +1 more

We study quantum entanglement between two spatially separated atoms coupled to the thermal reservoir. The influences of the initial state of the system, the atomic frequency difference and the mean number of the thermal field on the entanglement are examined. The results show that the maximum of the entanglement obtained with nonidentical atoms is greater than that obtained with identical atoms. The degree of entanglement is progressively decreased with the increase of the thermal noise. Interestingly, the two atoms can be easily entangled even when the two atoms are initially prepared in the most mixed states.

Chinese Physics Letters•Nov 29, 2006•6 citations

Protecting quantum entanglement in thermal reservoir by detuning

Chi Zhang, Jianhe Yang

Abstract In this work, the quantum entanglement dynamics of a two-atom system in the thermal reservoir is investigated. An analytical solution of the single atom in the thermal reservoir and the expression of the quantum entanglement of the two-atom system in the thermal reservoir are obtained by the Markovian master equation method. The results showed that the nonzero temperature leads to sudden death of entanglement under the weak coupling limit. The higher the temperature, the faster the decay of entanglement. In particular, the detuning and the smaller spectrum width in the weak atom-reservoir coupling regime can effectively protect the quantum entanglement of the two-atom system in the thermal reservoir under the weak atom-reservoir coupling regime. The corresponding physical explanation is given by the entropy production rare.

Physica Scripta•Aug 5, 2022•0 citations

Entanglement Properties Between Two Spatially Separated Atoms with Cascade Configuration in Free Space

杨国晖, 张均锋, 苗向阳 +1 more

当他们的空间分离大概放射波长或更少时，我们在空间通过延迟的偶极子偶极子相互作用与串联配置调查在二个相同原子之间的纠纷性质。我们分析偶极子偶极子相互作用导致的 Hamiltonian 的功能。由解决主人方程，我们证明自发的排放也导致纠纷和破坏纠纷。我们也在串联配置以内显示出纠纷的长寿时间。

理论物理通讯：英文版•Jan 1, 2010•0 citations

Experimental detection of quantum entanglement

Ming Ming, LI ., Ming-Jing +4 more

在这评论，我们为检测或测量纠纷介绍一些方法。几个非线性的纠纷证人被介绍。我们导出谁的一系列贝尔不平等最大地，为任何多国参加的 qubit 状态的违背能被使用我们的公式计算。非线性的纠纷证人和钟不平等能试验性地被操作。因此，他们为检测纠纷供应一个有效方法。我们也介绍一些试验性的方法测量形成，和否定性的凸房顶的延期的更低的界限的纠纷。

物理学前沿：英文版•Jan 1, 2013•0 citations

Dynamics of quantum correlations in two 2-level atoms coupled to thermal reservoirs

Zakaria Dahbi, Mostafa Mansour, Abderrahim El Allati

Abstract In this paper, we examine the dynamics of quantum correlations in two noninteractive two-level atoms coupled to two separate identical thermal reservoirs. The two atoms are initially produced in a Gisin state, which is a blend of a maximally entangled two-qubit state and a separable mixed state. Quantum entanglement is measured by logarithmic negativity, while the nonclassical correlations are characterized by trace distance discord and local quantum uncertainty. Using the mean photon number of reservoirs and spontaneous emission rates of atoms as inputs, we explore how these quantum resources behave. Consequently, we demonstrate that the dynamics of quantum entanglement and quantum correlations depend upon the parameters driving the system. Significantly, we further demonstrate that specific parameters may be tweaked to preserve the quantum resources in the system. The results give a full grasp of the quantum features of such a two-level atomic system, showing capabilities to construct quantum technology.

Physica Scripta•Nov 24, 2022•10 citations
我们学习在联合到热 resevoir 的二个空间地分开的原子之间的 quuantum 纠纷。系统，原子频率差别和纠纷上的热领域的吝啬的数字的起始的状态的影响被检验。结果证明 of 的最大值纠纷被检验。结果证明纠纷的最大值日益增多地随热噪音的增加被减少。有趣地，甚至当开始在大多数准备的二个原子混合了状态时，二个原子能容易被纠缠。
We study quantum entanglement between two spatially separated atoms coupled to the thermal reservoir. The influences of the initial state of the system, the atomic frequency difference and the mean number of the thermal field on the entanglement are examined. The results show that the maximum of the entanglement obtained with nonidentical atoms is greater than that obtained with identical atoms. The degree of entanglement is progressively decreased with the increase of the thermal noise. Interestingly, the two atoms can be easily entangled even when the two atoms are initially prepared in the most mixed states.
Abstract In this work, the quantum entanglement dynamics of a two-atom system in the thermal reservoir is investigated. An analytical solution of the single atom in the thermal reservoir and the expression of the quantum entanglement of the two-atom system in the thermal reservoir are obtained by the Markovian master equation method. The results showed that the nonzero temperature leads to sudden death of entanglement under the weak coupling limit. The higher the temperature, the faster the decay of entanglement. In particular, the detuning and the smaller spectrum width in the weak atom-reservoir coupling regime can effectively protect the quantum entanglement of the two-atom system in the thermal reservoir under the weak atom-reservoir coupling regime. The corresponding physical explanation is given by the entropy production rare.
Abstract In this paper, we examine the dynamics of quantum correlations in two noninteractive two-level atoms coupled to two separate identical thermal reservoirs. The two atoms are initially produced in a Gisin state, which is a blend of a maximally entangled two-qubit state and a separable mixed state. Quantum entanglement is measured by logarithmic negativity, while the nonclassical correlations are characterized by trace distance discord and local quantum uncertainty. Using the mean photon number of reservoirs and spontaneous emission rates of atoms as inputs, we explore how these quantum resources behave. Consequently, we demonstrate that the dynamics of quantum entanglement and quantum correlations depend upon the parameters driving the system. Significantly, we further demonstrate that specific parameters may be tweaked to preserve the quantum resources in the system. The results give a full grasp of the quantum features of such a two-level atomic system, showing capabilities to construct quantum technology.