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arXiv 0905.2448quant-ph
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利用纠缠态表象导出含克尔介质的耗散腔密度算符的无限算符和表象

Infinite operator-sum representation of density operator for a dissipative cavity with Kerr medium derived by virtue of entangled state representation

Li-yun Hu, Hong-yi Fan

摘要:

利用热纠缠态表象求解含克尔介质的耗散腔的主方程,得到密度算符的无限算符和表象} $ρ(t) =\sum_{m,n,l=0}^{\infty}M_{m,n,l}ρ_{0}\mathcal{M}_{m,n,l}^{\dagger}.$值得注意的是,} $M_{m,n,l}$与$\mathcal{M}_{m,n,l}^{\dagger}$不是厄米共轭的,但规范化的} $\sum_{m,n,l=0}^{\infty}\mathcal{M}_{nm,,l}^{\dagger}M_{m,n,l}=1$仍然成立},即,它们在一般意义上是保留痕迹的。如果一般超算子理论需要修改,这个例子可能会激发进一步的研究。

英文摘要:

By using the thermo entangled state representation we solve the master equation for a dissipative cavity with Kerr medium to obtain density operators' infinite operator-sum representation}$ρ(t) =\sum_{m,n,l=0}^{\infty}M_{m,n,l}ρ_{0}\mathcal{M}_{m,n,l}^{\dagger}.$ It is noticeable that}$M_{m,n,l}$ is not hermite conjugate to $\mathcal{M}_{m,n,l}^{\dagger}$, nevertheless the normalization}$\sum_{m,n,l=0}^{\infty}\mathcal{M}_{nm,,l}^{\dagger}M_{m,n,l}=1$ still holds}, i.e., they are trace-preserving in a general sense. This example may stimulate further studying if general superoperator theory needs modification.

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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