78 citations · 321 across the 20 of their papers we have counts for
21 papers
An Ab initio Framework for Simulating Ultrafast Nonlinear Cavity Quantum Electrodynamics Spectra
Luis Vasquez, Kewei Sun, Haibo Ma +1
In this letter we introduce a theoretical framework for the simulation of ultrafast transient absorption pump-probe spectra of molecular polaritons. We derive and implement the cav…
A Davydov Ansatz approach to accurate system-bath dynamics in the presence of multiple baths with distinct temperatures
Chenlin Ma, Fulu Zheng, Kewei Sun +2
We perform benchmark simulations using the time-dependent variational approach with the multiple Davydov Ansatz (mDA) to study realtime nonequilibrium dynamics in a single qubit mo…
Hamiltonian non-Hermicity: accurate dynamics with the multiple Davydov D Ansätze
L. Zhang, K. Shen, Y. Yan +3
We examine the applicability of the numerically accurate method of time dependent variation with multiple Davydov Ansatze (mDA) to non-Hermitian systems. Three systems of interest…
Optical-cavity manipulation strategies of singlet fission systems mediated by conical intersections: insights from fully quantum simulations
Kewei Sun, Maxim Gelin, Kaijun Shen +1
We offer a theoretical perspective on simulation and engineering of polaritonic conical-intersection-driven singlet-fission (SF) materials. We begin by examining fundamental models…
Finite-Temperature Hole-Magnon Dynamics in an Antiferromagnet
Kaijun Shen, Kewei Sun, Maxim F. Gelin +1
Employing the numerically accurate multiple Davydov Ansatz in combination with the thermo-field dynamics approach, we delve into interplay of the finite-temperature dynamics of hol…
Photon-assisted Landau Zener transitions in a tunable driven Rabi dimer coupled to a micromechanical resonator
Daniel Melvin, Fulu Zheng, Kewei Sun +2
Employing the multiple Davydov D Ansatz with the time-dependent variational principle, we have investigated photon-assisted Landau-Zener (LZ) transitions and qubit manipulation…