Dynamics of Entanglement for a Two-Parameter Class of States in a Qubit-Qutrit System

We investigate the dynamics of entanglement for a two-parameter class of states in a hybrid qubit-qutrit system under the influence of various dissipative channels. Our results show that entanglement sudden death （ESD） is a general phenomenon and it usually takes place in a qubit-qutrit system inter...

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Published inCommunications in theoretical physics Vol. 57; no. 6; pp. 983 - 990
Main Author 魏海瑞 任宝藏 李涛 华明 邓富国
Format Journal Article
LanguageEnglish
Published 01.06.2012
Subjects
Channels
Coherence
Dissipation
Dynamic tests
Dynamical systems
Dynamics
Entangled states
Entanglement
it系统
交互系统
动力学
双参数
环境影响
突然死亡
纠缠态
量子比特
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ISSN0253-6102
DOI10.1088/0253-6102/57/6/08

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Summary:We investigate the dynamics of entanglement for a two-parameter class of states in a hybrid qubit-qutrit system under the influence of various dissipative channels. Our results show that entanglement sudden death （ESD） is a general phenomenon and it usually takes place in a qubit-qutrit system interacting with various noisy channels, not only the ease with dephasing and depolarizing channels observed by others. ESD can only be avoided for some initially entangled states under some particular noisy channels. Moreover, the environment affects the entanglement and the coherence of the system in very different ways.
Bibliography:WEI Hai-Rui , REN Bao-Cang , LI Tao , HUA Ming , and DENG Fu-Guo Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
We investigate the dynamics of entanglement for a two-parameter class of states in a hybrid qubit-qutrit system under the influence of various dissipative channels. Our results show that entanglement sudden death （ESD） is a general phenomenon and it usually takes place in a qubit-qutrit system interacting with various noisy channels, not only the ease with dephasing and depolarizing channels observed by others. ESD can only be avoided for some initially entangled states under some particular noisy channels. Moreover, the environment affects the entanglement and the coherence of the system in very different ways.
11-2592/O3
dynamics of entanglement, qubit-qutrit systems, a two-parameter class of states, dissipative channels, entanglement sudden death
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ISSN:0253-6102
DOI:10.1088/0253-6102/57/6/08