3 papers
quant-ph2024
Variational approach to light-matter interaction: Bridging quantum and semiclassical limits
Yiying Yan, Zhiguo Lü, JunYan Luo
We present a time-dependent variational approach with the multiple Davydov trial state to simulate the dynamics of light-matter systems when the field is in a coherent state…
quant-ph2023
Emission spectral non-Markovianity in qubit-cavity systems in the ultrastrong coupling regime
Chenyi Zhang, Minghong Yu, Yiying Yan +3
We study the emission spectra of dissipative Rabi and Jaynes-Cummings models in the non-Markovian and ultrastrong coupling regimes. We have derived a polaron-transformed Nakajima-Z…
quant-ph2023
Lamb Shift and the Vacuum Rabi Splitting in a Strongly Dissipative Environment
Yiying Yan, Tadele T. Ergogo, Zhiguo Lü +3
We study the vacuum Rabi splitting of a qubit ultrastrongly coupled to a high- cavity mode and a radiation reservoir. Three methods are employed: a numerically exact variational…