Nonequilibrium transient dynamics of photon statistics

Md Manirul Ali, Wei Min Zhang

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We investigate the transient dynamics of photon statistics through two-time correlation functions for optical field coupled to a non-Markovian environment, described by the Fano-type Hamiltonian. We exactly solve the time-evolution of an initially nonclassical state which exhibits photon antibunching. We find that the transient correlations at different times t yield a smooth transition from antibunching to bunching photon statistics in the weak system-environment coupling regime. In the strong-coupling regime, the two-time correlations exhibit oscillations that persists both in the transient process and in the steady-state limit. The oscillatory behavior of photon statistics is a manifestation of strong non-Markovian memory dynamics where the system remains in nonequilibrium from its environment. We also find that the antibunching-to-bunching transition in the weak-coupling regime and the photon statistical oscillations in the strong-coupling regime are strongly influenced by the environment temperature.

Original languageEnglish
Article number033830
JournalPhysical Review A
Issue number3
Publication statusPublished - 2017 Mar 23

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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