Measuring the Wigner Functions of Two-Mode Cavity Fields and Testing the Bell’s Inequalities
ZHANG Zhi-Ming
Department of Physics, Shanghai Jiao Tong University, Shanghai 200240
Max-Planck-Institute for Quantum Optics, Hans-Kopfermann-Str.1, D-85748 Garching, Germany
Measuring the Wigner Functions of Two-Mode Cavity Fields and Testing the Bell’s Inequalities
ZHANG Zhi-Ming
Department of Physics, Shanghai Jiao Tong University, Shanghai 200240
Max-Planck-Institute for Quantum Optics, Hans-Kopfermann-Str.1, D-85748 Garching, Germany
关键词 ：
03.65.Ta ,
03.65.Wj ,
42.50.Dv ,
42.50.Ct
Abstract ： We propose a scheme for measuring the Wigner function of a two mode cavity field. The scheme bases on the interaction between the two-mode cavity field and three-level atoms. We find a simple relation between the Wigner function and the atomic population. One can obtain the Wigner function by measuring the atomic population with a micromaser-like experiment and doing a numerical integral. By using the two-mode Wigner function one can obtain the Clauser--Horne combination and test the Bell's inequalities. We test our equations with a two-mode entanglement state and the results are rather good.
Key words ：
03.65.Ta
03.65.Wj
42.50.Dv
42.50.Ct
出版日期: 2004-01-01
:
03.65.Ta
(Foundations of quantum mechanics; measurement theory)
03.65.Wj
(State reconstruction, quantum tomography)
42.50.Dv
(Quantum state engineering and measurements)
42.50.Ct
(Quantum description of interaction of light and matter; related experiments)
引用本文:
ZHANG Zhi-Ming. Measuring the Wigner Functions of Two-Mode Cavity Fields and Testing the Bell’s Inequalities[J]. 中国物理快报, 2004, 21(1): 5-8.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I1/5
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2004, Vol. 21 
