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arXiv quant-ph/0505078quant-ph
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非自治压缩真空场库耦合产生单模腔场压缩态

Production of squeezed state of single mode cavity field by the coupling of squeezed vacuum field reservoir in nonautonomous case

Jun-Hong An, Shun-Jin Wang, Hong-Gang Luo, Cheng-Long Jia

摘要:

利用代数动力学方法研究了单模电磁场与含时压缩真空场库相互作用系统的耗散、退相干特性及其渐近行为。借助于相应的$hw(4)$代数的左、右表示,发现系统的非自治主方程的动力学对称性为$su(1,1)$ .证明了该系统的唯一平衡定常解是压缩态,且系统的任意初始状态都渐近地接近唯一压缩态。由此发现,压缩真空场贮器起着空腔场的压缩模的作用。

英文摘要:

The dissipative and decoherence properties as well as the asymptotic behavior 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 proved 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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