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

Optoelectronics Letters

Quantum field entropy of the system with interaction between moving Bell-state atoms and coherent light field

张彩花, 萨楚尔夫, 格日乐

Published Jan 1, 2011• 0 citations
OpenAlex

Abstract

有与协调状态交往的二个动人的原子的系统的地熵借助于完整的量子论被调查。在有二个原子的不同起始的状态下面，地熵上的轻地紧张和原子运动的影响被讨论。结果显示原子的运动在地熵进化导致严格的频率。当二个原子处于钟状态时|11 开始，系统处于一个完全解开的状态。为开始以另外的贝尔状态的原子，这块地周期性地与原子纠缠。

Related papers

Quantum field entropy of the system with interaction between moving Bell-state atoms and coherent light field

Cai-hua Zhang, Sachuerfu, Gerile

Optoelectronics Letters•Nov 1, 2011•0 citations

Entropy of Field Interacting With Two Atoms in Bell State

Jiao, Zhiyong, Ma +5 more

在这篇论文，我们调查开始处于四个贝尔状态之一与二个二水平的原子交往的单个模式的协调的光地的熵性质。二个原子的不同起始的状态导致地熵的不同进化，这被发现，这块地的紧张为地熵的进化性质起一个重要作用。

理论物理通讯：英文版•Jan 1, 2009•0 citations

Evolution of field entropy in a system of Schrdinger cat state light field interacting with two moving entangled atoms

Cai Zhang

The field entropy evolution of a system which is composed of two moving entangled atoms interacting with the Schrdinger cat state is studied by means of the full quantum theory.The influences of the strength of light field,the phase angle between the two coherent states,the atomic motion and the field-model structure parameter on the field entropy are discussed.The result shows that the atomic motion leads to the periodic evolution of the field entropy.When the strength of light field is small,the degree of entanglement is maximum in a system of the moving atoms interacting with an odd coherent state;it is intermediate for a system of the the moving atoms interacting with Yurke-Stoler coherent state,and it is minimum in a system of the moving atoms interacting with an even coherent state.When the strength of light field is large enough,the degrees of entanglement between the moving atoms and the three different states of the light fields become equal,and the properties of field entropy evolvement are also same.With increasing atomic speed or field-model structure parameter,the evolution period of the field entropy is shortter,the degree of entanglement between field and moving atoms is weaker.

Journal of Atomic and Molecular Physics•Jan 1, 2008•0 citations

Evolution of Field Entropy in a System of Squeezed Coherent State Light Field Interacting with Two Moving Entangled Atoms

Zhang Caihua

The field entropy evolution in a system which is composed of two moving entangled atoms interacting with the squeezed coherent state is studied by means of the full quantum theory.The influences of the coherent amplitude factor,the squeezing factor,the atomic motion and the field-model structure parameter on the field entropy are discussed.The result shows that the atomic motion leads to the periodic evolution of the field entropy.An increase of coherent amplitude factor weaken the degree of entanglement between the atoms and the light field.However,an increase of squeezing factor of light strengthen the degree of entanglement between the atoms and the light field.With increasing atomic speed or field-model structure parameter,the evolution period of the field entropy becomes shorter,and the degree of entanglement between field and moving atoms becomes smaller.

Acta Sinica Quantum Optica•Jan 1, 2009•0 citations

Field’s entropy in the atom–field interaction: Statistical mixture of coherent states

Arturo Zúñiga-Segundo, Raúl Juárez-Amaro, Omar Aguilar Loreto +1 more

Annals of Physics•Feb 17, 2017•7 citations

Manipulation of entanglement and preparation of quantum states for moving two-atom and the light field via intensity-dependent coupling

Xiaojuan Liu, Zhou Bing-Ju, Liu Yi-Man +1 more

In this paper, the Tavis-Cummings model is generalized to simultaneously consider the atomic motion and the field via intensity dependent coupling. Under the conditions of vacuum field, weakly and strongly coherent field, the entanglement evolution properties of two-atom-field and two-atom-two-atom are investigated using atomic reduced entropy and concurrence, respectively. According to evolution characteristics above, we prepare the W-class states of two-atom-field, two-atom Bell state, fidelity state of Bell-state atoms, single-photon state, two-photon state and stable number-states of field by selecting the interaction time of the two-atom-field, selecting the entanglement factor of the two-atom, regulating the field-mode structure parameter, controlling the probability amplitude of pure state of the system and selective measurement. The manipulation of two-atom Bell state sudden generation and its maintenance in a limited time, the formation of periodic quantum echo of Bell-state atoms and the continuous fidelity of Bell-state atomic information are achieved. The results show that the system has a powerful function of quantum information, and provide the physical carrier and theoretical parameters for experimental implementation of quantum information processing.

Acta Physica Sinica•Jan 1, 2012•2 citations
有与协调状态交往的二个动人的原子的系统的地熵借助于完整的量子论被调查。在有二个原子的不同起始的状态下面，地熵上的轻地紧张和原子运动的影响被讨论。结果显示原子的运动在地熵进化导致严格的频率。当二个原子处于钟状态时|11 开始，系统处于一个完全解开的状态。为开始以另外的贝尔状态的原子，这块地周期性地与原子纠缠。
The field entropy evolution of a system which is composed of two moving entangled atoms interacting with the Schrdinger cat state is studied by means of the full quantum theory.The influences of the strength of light field,the phase angle between the two coherent states,the atomic motion and the field-model structure parameter on the field entropy are discussed.The result shows that the atomic motion leads to the periodic evolution of the field entropy.When the strength of light field is small,the degree of entanglement is maximum in a system of the moving atoms interacting with an odd coherent state;it is intermediate for a system of the the moving atoms interacting with Yurke-Stoler coherent state,and it is minimum in a system of the moving atoms interacting with an even coherent state.When the strength of light field is large enough,the degrees of entanglement between the moving atoms and the three different states of the light fields become equal,and the properties of field entropy evolvement are also same.With increasing atomic speed or field-model structure parameter,the evolution period of the field entropy is shortter,the degree of entanglement between field and moving atoms is weaker.
The field entropy evolution in a system which is composed of two moving entangled atoms interacting with the squeezed coherent state is studied by means of the full quantum theory.The influences of the coherent amplitude factor,the squeezing factor,the atomic motion and the field-model structure parameter on the field entropy are discussed.The result shows that the atomic motion leads to the periodic evolution of the field entropy.An increase of coherent amplitude factor weaken the degree of entanglement between the atoms and the light field.However,an increase of squeezing factor of light strengthen the degree of entanglement between the atoms and the light field.With increasing atomic speed or field-model structure parameter,the evolution period of the field entropy becomes shorter,and the degree of entanglement between field and moving atoms becomes smaller.
In this paper, the Tavis-Cummings model is generalized to simultaneously consider the atomic motion and the field via intensity dependent coupling. Under the conditions of vacuum field, weakly and strongly coherent field, the entanglement evolution properties of two-atom-field and two-atom-two-atom are investigated using atomic reduced entropy and concurrence, respectively. According to evolution characteristics above, we prepare the W-class states of two-atom-field, two-atom Bell state, fidelity state of Bell-state atoms, single-photon state, two-photon state and stable number-states of field by selecting the interaction time of the two-atom-field, selecting the entanglement factor of the two-atom, regulating the field-mode structure parameter, controlling the probability amplitude of pure state of the system and selective measurement. The manipulation of two-atom Bell state sudden generation and its maintenance in a limited time, the formation of periodic quantum echo of Bell-state atoms and the continuous fidelity of Bell-state atomic information are achieved. The results show that the system has a powerful function of quantum information, and provide the physical carrier and theoretical parameters for experimental implementation of quantum information processing.