2025/04/14 by Raphael Holzinger, Holzinger, Raphael, Susanne F. Yelin +1 · 2 citations
Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Molecular Junctions and Nanostructures #Optical properties and cooling technologies in crystalline materials #Organic Light-Emitting Diodes Research #Quantum Gases (cond-mat.quant-gas) #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2504.09985
openalex publication_date 2025/04/14 · openalex created_date 2025/10/19 · openalex updated_date 2026/07/30
Determining the peak photon emission time and rate for an ensemble of N quantum systems undergoing collective superradiant decay typically requires tracking the time evolution of the density operator. Generally, the dimension of the density operator grows exponentially (∼ 2N) with the number of emitters, in the absence of any symmetries such as in Dicke superradiance with full or partial permutational symmetry. We present a detailed study of the superradiant peak emission rate and time for initially fully excited quantum emitter ensembles, for one-, two- and three-dimensional arrays in free-space and emitter chains coupled to waveguide reservoirs. For few emitters (N\lesssim 14) we utilize the full quantum master equation, and for mesoscopic emitter numbers (N\lesssim 400) we use a second- and third-order cumulant expansion of the operator averages to track the time evolution of the system.