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Squeezing entangled state of two particles with unequal masses |
| Yang Yang (杨阳)a, Fan Hong-Yi (范洪义)b |
a Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
b Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026, China |
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Abstract For two unequal-mass particles, we construct the entangled state representation and then derive the corresponding squeezing operator. This squeezing operator has a natural realization in the entangled state representation, which exhibits the intrinsic relation between squeezing and quantum entanglement. This squeezing operator involves both two-mode squeezing and the direct product of two single-mode squeezings. The maximum squeezing occurs when the two particles possess equal mass. When two particles' mass difference becomes large, the component of the two single-mode squeezings becomes dominant.
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Received: 15 August 2012
Revised: 29 August 2012
Accepted manuscript online:
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PACS:
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03.65.Ud
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(Entanglement and quantum nonlocality)
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42.50.-p
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(Quantum optics)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10975125). |
Corresponding Authors:
Yang Yang
E-mail: yangyang@mail.ustc.edu.cn
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Cite this article:
Yang Yang (杨阳), Fan Hong-Yi (范洪义) Squeezing entangled state of two particles with unequal masses 2013 Chin. Phys. B 22 030306
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