多波段光学布洛赫振荡中的经典干涉和量子干涉
Classical and quantum interference in multiband optical Bloch oscillations
摘要：
研究了耦合波导阵列中光场的经典干涉和量子干涉，并研究了在可忽略齐纳隧道效应的情况下，光场发生多波段光学布洛赫振荡的情况。特别是，它示出的马赫-曾德尔干涉效应自发地出现在多波段BO由于光束分裂和随后的光束重组发生在一个BO周期。作为量子干涉的一个值得注意的例子，我们讨论了在光子计数率的相关光子对经历两个波段BO，德布罗意波长的量子马赫-曾德尔干涉测量中观察到的纠缠双光子状态的表现类似的现象的干涉条纹加倍。
英文摘要：
Classical and quantum interference of light propagating in arrays of coupled waveguides and undergoing multiband optical Bloch oscillations (BOs) with negligible Zener tunneling is theoretically investigated. In particular, it is shown that Mach-Zehnder-like interference effects spontaneously arise in multiband BOs owing to beam splitting and subsequent beam recombination occurring in one BO cycle. As a noteworthy example of quantum interference, we discuss the doubling of interference fringes in photon counting rates for a correlated photon pair undergoing two-band BOs, a phenomenon analogous to the manifestation of the de Broglie wavelength of an entangled biphoton state observed in quantum Mach-Zehnder interferometry.
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