4 papers · 1 filter
Photon counting statistics in the presence of spectral diffusion induced by nonequilibrium environmental fluctuations
Xiangji Cai, Yonggang Peng, Yujun Zheng
We theoretically investigate the statistical properties of photon emission of a driven two-level single-molecule system undergoing spectral diffusion induced by nonequilibrium envi…
Single-photon emission modeling with statistical estimators for the exponential distribution
Artur Czerwinski, Katarzyna Czerwinska, Xiangji Cai +5
Single-photon sources are used in numerous quantum technologies, from sensing and imaging to communication, making the accurate modeling of their emissions essential. In this work,…
Quantum speed limits in dephasing dynamics of a qubit system coupled to thermal environments
Xiangji Cai, Yanyan Feng, Jing Ren +4
We theoretically study the quantum speed limits (QSLs) of a qubit system coupled to a thermal dephasing environment with an Ohmic-like spectral density. Based on the geometric QSLs…
Effects of Chromatic Dispersion on Single-Photon Temporal Wave Functions in Quantum Communications
Artur Czerwinski, Xiangji Cai, Saeed Haddadi
In this study, we investigate the effects of chromatic dispersion on single-photon temporal wave functions (TWFs) in the context of quantum communications. Departing from classical…