Phase modulation of directed transport, energy diffusion, and quantum scrambling in a Floquet non-Hermitian system

WL Zhao, G Li, J Liu - Physical Review Research, 2024 - APS
We investigate both analytically and numerically the wavepacket's dynamics in momentum
space for a Floquet non-Hermitian system with a periodically kicked driven potential. We …

Berry curvature inside a -symmetry protected exceptional surface

P Wang, L **, Z Song - Physical Review B, 2024 - APS
A three-dimensional non-Hermitian Hamiltonian with parity-time symmetry can exhibit a
closed exceptional surface (EP surface) in momentum space, which is a non-Hermitian …

Hamiltonian non-Hermicity: Accurate dynamics with the multiple Davydov D2Ansätze

L Zhang, K Shen, Y Yan, K Sun, MF Gelin… - The Journal of Chemical …, 2024 - pubs.aip.org
We examine the applicability of the numerically accurate method of time dependent variation
with multiple Davydov Ansätze (mDA) to non-Hermitian systems. As illustrative examples …