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Production of Squeezed State of Single Mode Cavity Field by the Coupling of Squeezed Vacuum Field Reservoir in Nonautonomous Case
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| AN Jun-Hong1;WANG Shun-Jin1,2;LUO Hong-Gang1; JIA Cheng-Long1 |
| 1Department of Modern Physics, Lanzhou University, Lanzhou 730000
2Department of Physics, Sichuan University, Chengdu 610065
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| Cite this article: |
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AN Jun-Hong, WANG Shun-Jin, LUO Hong-Gang et al 2004 Chin. Phys. Lett. 21 1-4 |
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Abstract The dissipative and decoherence properties as well as the asymptotic behaviour of the single mode electromagnetic field interacting with the time-dependent squeezed vacuum field reservoir are investigated in detail by using the algebraic dynamical method. With the help of the left and right representations of the relevant hw(4) algebra, the dynamical symmetry of the nonautonomous master equation of the system is found to be su(1,1). The unique equilibrium steady solution is found to be the squeezed state and any initial state of the system is proven to approach the unique squeezed state asymptotically. Thus the squeezed vacuum field reservoir is found to play the role of a squeezing mold of the cavity field.
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| Keywords:
03.65.Fd
42.50.Dv
42.88.+h
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Published: 01 January 2004
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| PACS: |
03.65.Fd
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(Algebraic methods)
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42.50.Dv
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(Quantum state engineering and measurements)
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42.88.+h
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(Environmental and radiation effects on optical elements, devices, and systems)
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