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arXiv 1203.0976quant-ph
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谱带宽对非简并参量放大器纠缠的影响

Influence of the spectral bandwidth in the entanglement of a nondegenerate parametric amplifier

Ana M. Martins

摘要:

我们提出了一个简单的非简并参数相互作用的模型,考虑到有限的频谱带宽的泵浦波。精确求解了Heisenberg运动方程,并证明了玻色算符服从广义Bogoliubov变换,其中压缩度依赖于谱带宽.计算了在相互作用中产生的平均光子数、压缩度和纠缠度,结果表明它们随光谱带宽的增加而减小。

英文摘要:

We propose a simple model for the nondegenerate parametric inter- action that takes into account the finite spectral bandwidth of the pump wave. The Heisenberg equations of motion are solved exactly and we show that the bosonic operators obey to a generalized Bogoliubov transforma- tion, where the degree of squeezing depends on the spectral bandwidth. The average number of photons produced in the interaction, the degree of squeezing as well as the degree of entanglement are computed showing that they decrease with increasing spectral bandwidth.

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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