Single molecular magnets as a source of continuous-variable entanglement
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Author(s): Lu XY (Lue, Xin-You), Liu JB (Liu, Ji-Bing), Tian Y (Tian, Yue), Song PJ (Song, Pei-Jun), Zhan ZM (Zhan, Zhi-Ming)
Source: EPL Volume: 82 Issue: 6 Article Number: 64003 Published: JUN 2008
Times Cited: 0 References: 63 Citation MapCitation Map beta
Abstract: We study the generation and evolution of continuous-variable entanglement in a single-molecular-magnets (SMM) system, where the quantum coherence effect is induced by two classical electromagnetic fields (pump and control fields). Our numerical results show that the entanglement of cavity fields can be controlled efficiently by tuning the intensity and frequency detuning of control field, and the macroscopic entangled light with long entanglement time can be realized in this SMM system, over a wide range of initial states of the cavity field. This investigation can be used for achieving the macroscopic entangled light in a solid-state medium, which is much more practical than that in an atomic or molecular medium because of its flexible design. Copyright (C) EPLA, 2008.
Document Type: Article
Language: English
KeyWords Plus: QUANTUM; MAGNETIZATION; REALIZATION; CRITERION; SYSTEMS; CLUSTER; STATE; LASER; ATOM
Reprint Address: Lu, XY (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
Addresses:
1. Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
2. Hubei Normal Univ, Dept Phys, Huangshi 435002, Peoples R China
3. Jianghan Univ, Sch Phys & Informat Engn, Wuhan 430056, Peoples R China
E-mail Addresses: ,
Publisher: EDP SCIENCES S A, 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
Subject Category: Physics, Multidisciplinary