论文标题
巨型原子衰减的光子模拟
Photonic simulation of giant atom decay
论文作者
论文摘要
在电磁模式的无特征连续体中，激发原子的自发发射是量子电动力学的基本过程，与量子发射极的指数衰减相关，并伴随着光子的不可逆发射。但是，考虑到$^{\ prime} $巨型$^{\ prime} $ ATOM时，这种简单的方案将被深入修改，即，一个原子的尺寸大于发射光子的波长。在这种非常规的政权中，由于非本地光原子耦合引起的干扰效应，观察到非马克维亚效应和与指数衰减的强偏差。在这里，我们建议基于光学波导非平局耦合到波导晶格中的光逃逸动力学对非马克维亚巨型原子衰减的光子模拟。可以在该系统中模仿诸如非指数衰减，增强或放缓的非指数衰减，增强或放缓以及原子场暗状态的形成
Spontaneous emission of an excited atom in a featureless continuum of electromagnetic modes is a fundamental process in quantum electrodynamics associated with an exponential decay of the quantum emitter to its ground state accompanied by an irreversible emission of a photon. However, such a simple scenario is deeply modified when considering a $^{\prime}$giant$^{\prime}$ atom, i.e an atom whose dimension is larger than the wavelength of the emitted photon. In such an unconventional regime, non-Markovian effects and strong deviations from an exponential decay are observed owing to interference effects arising from non-local light-atom coupling. Here we suggest a photonic simulation of non-Markovian giant atom decay, based on light escape dynamics in an optical waveguide non-locally-coupled to a waveguide lattice. Major effects such as non-exponential decay, enhancement or slowing down of the decay, and formation of atom-field dark states can be emulated in this system
