Two-time correlation functions beyond quantum regression theorem: Effect of external noise
arXiv:2101.08663 · doi:10.1007/s11128-021-03153-6
Abstract
We present the results of a study of the two-time correlation functions of a dichotomously driven two-level system in contact with a thermal bath by using corrections beyond the quantum regression theorem. In the strong system-environment coupling regime, it is found that the noise parameters could be tuned to control the magnitude of corrections at low environmental temperatures. The motional averaging and narrowing effect of the external noise was observed on the absorption and emission spectra of the two-state system. Furthermore, effects similar to the destruction of tunneling and noise enhancement of transport are observed in the dynamics of the two-time correlations.
16 pages and 5 figures
References in corpus (5)
- Environment-Assisted Quantum Transport
- Quantum regression theorem and non-Markovianity of quantum dynamics
- Non-Markovian finite-temperature two-time correlation functions of system operators of a pure-dephasing model
- Non-Markovian finite-temperature two-time correlation functions of system operators: beyond the quantum regression theorem
- Non-Markovian dynamics of a nanomechanical resonator measured by a quantum point contact