Quantum speed limit of Jaynes-Cummings model with detuning for arbitrary initial states
Quantum Physics
2023-07-21 v1
Abstract
The quantum speed limit (QSL) of the Jaynes-Cummings model with detuning for arbitrary initial states is investigated. We mainly focus on the influences of the detuning, width of Lorentzian spectral density, and coherence of the initial state on the non-Markovian speedup evolution in an open system. It is found that even in the Markovian regime, increasing the detuning parameter leads to quantum speedup. Moreover, we reveal that the QSL has an inverse relation with the population of the initial excited state. Notably, we show that the QSL depends on the quantum coherence of the system's initial state such that the maximal coherent state can saturate its bound.
Keywords
Cite
@article{arxiv.2302.03395,
title = {Quantum speed limit of Jaynes-Cummings model with detuning for arbitrary initial states},
author = {Yasin Shahri and Maryam Hadipour and Saeed Haddadi and Hazhir Dolatkhah and Soroush Haseli},
journal= {arXiv preprint arXiv:2302.03395},
year = {2023}
}
Comments
16 pages, 6 figures