Interplay between spontaneous decay rates and Lamb shifts in open photonic systems
arXiv:1804.08684 · doi:10.1364/OL.43.001950
Abstract
In this letter, we describe the modified decay rate and photonic Lamb (frequency) shift of quantum emitters in terms of the resonant states of a neighboring photonic resonator. This description illustrates a fundamental distinction in the behaviors of closed (conservative) and open (dissipative) systems: the Lamb shift is bounded by the emission linewidth in closed systems while it overcomes this limit in open systems.
7 pages, 3 figures