78 citations · 489 across the 20 of their papers we have counts for
20 papers
Polarization dynamics of the spin-boson model in the shifted boson Hilbert space
Yang Zhao, Lipeng Chen
Faithfully simulating the dynamics of open quantum systems requires efficiently addressing the challenge of an infinite Hilbert space. Inspired by the shifted boson operator techni…
Multiphoton resonance band and Bloch-Siegert shift in a bichromatically driven qubit
Yiying Yan, Zhiguo Lü, Lipeng Chen +1
We study the resonance and dynamics of a qubit exposed to a strong aperiodic bichromatic field by using a periodic counter-rotating hybridized rotating wave (CHRW) Hamiltonian, whi…
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…
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…
Simulating optical linear absorption for mesoscale molecular aggregates: an adaptive hierarchy of pure states approach
Tarun Gera, Lipeng Chen, Alex Eisfeld +3
In this paper, we present a new method for calculating linear absorption spectra for large molecular aggregates, called dyadic adaptive HOPS (DadHOPS). This method combines the ada…
Dynamics of the spin-boson model: the effect of bath initial conditions
Lipeng Chen, Yiying Yan, Maxim F. Gelin +1
Dynamics of the (sub-)Ohmic spin-boson model under various bath initial conditions is investigated by employing the Dirac-Frenkel time-dependent variational approach with the multi…