学术
Entanglement Transfer Between Cavity Fields and Excitons in a Driven Quantum Dot System
ZENG Tian-Hai SHAO Bin ZOU Jian
Department of PhysiCs, Beijing Institute of Technology, Beijing 100081, China
文章出处:
《理论物理通讯：英文版》-2007年48卷4期 -645-648页
分 类 号:
Entanglement Transfer Between Cavity Fields and Excitons in a Driven Quantum Dot System
Abstract:
We investigate entanglement transfer from two separate cavities to the excitons in two quantum dots separately placed in the two cavities. The cavity fields and the excitons are treated as two continuous-variable （CV） subsystems. The time-dependent characteristic functions in the Wigner representation for the two subsystems are analytically obtained. Under the conditions that one of the two CV subsystems is initially prepared in a two-mode squeezed vacuum state and the other in its lowest energy state, we show that the entanglement reciprocation between the cavity fields and the excitons is realizable.[著者文摘]
Key words:
entanglement transfer, quantum dot, logarithmic negativity
基金资助:
The project supported by National Natural Science Foundation of China under Grant Nos. 10374007 and 60472021
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