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arXiv 1105.4602cond-mat.mes-hall
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强耗散非谐振腔中二能级系统的稳态反演

Stationary inversion of a two level system coupled to an off-resonant cavity with strong dissipation

S. Hughes, H. J. Carmichael

摘要:

我们提出了一个非共振激发方案,实现了显着的平稳反转在两个能级系统。所创建的反转利用腔辅助的双光子共振来增强非线性腔QED的多光子制度,并且即使在腔衰减速率与腔-点耦合速率相当的半导体环境中也能存活。激子人口大于0.75的现实衰变和纯退相的存在下获得。量子轨道模拟和量子主方程计算有助于阐明基础物理学,并描述简化速率方程模型的局限性。根据荧光强度和二阶关联函数随驱动功率的变化关系,预测了反转和多光子腔QED的实验特征。

英文摘要:

We present an off-resonant excitation scheme that realizes pronounced stationary inversion in a two level system. The created inversion exploits a cavity-assisted two photon resonance to enhance the multi-photon regime of nonlinear cavity QED and survives even in a semiconductor environment, where the cavity decay rate is comparable to the cavity-dot coupling rate. Exciton populations of greater than 0.75 are obtained in the presence of realistic decay and pure dephasing. Quantum trajectory simulations and quantum master equation calculations help elucidate the underlying physics and delineate the limitations of a simplified rate equation model. Experimental signatures of inversion and multi-photon cavity QED are predicted in the fluorescence intensity and second-order correlation function measured as a function of drive power.

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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