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arXiv 1208.0969quant-ph
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单端光子波导中的自发发射动力学

Dynamics of spontaneous emission in a single-end photonic waveguide

T. Tufarelli, F. Ciccarello, M. S. Kim

摘要:

我们研究了一个二能级系统的自发发射,例如一个原子或类原子物体,耦合到一个单端,半无限的一维光子波导,使得一端表现为完美的反射镜,而光可以穿过相对端而没有背反射。通过量子微观模型,我们表明,这种几何形状可以导致非指数和长寿命的原子衰变。在适当的条件下,在原子-镜间隙中出现一个束缚原子-光子定态,从而捕获了大量的初始原子激发。然而,这可以通过施加原子频移来释放,引起光子发射的恢复。这种影响的弹性典型的有害因素进行了分析。

英文摘要:

We investigate the spontaneous emission of a two-level system, e.g. an atom or atomlike object, coupled to a single-end, i.e., semi-infinite, one-dimensional photonic waveguide such that one end behaves as a perfect mirror while light can pass through the opposite end with no back-reflection. Through a quantum microscopic model we show that such geometry can cause non-exponential and long-lived atomic decay. Under suitable conditions, a bound atom-photon stationary state appears in the atom-mirror interspace so as to trap a considerable amount of initial atomic excitation. Yet, this can be released by applying an atomic frequency shift causing a revival of photon emission. The resilience of such effects to typical detrimental factors is analyzed.

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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