3 papers
quant-ph2025
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…
quant-ph2025
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…
quant-ph2024
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…