138 citations · 2.2k across the 65 of their papers we have counts for
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Floquet topological semimetal phases of an extended kicked Harper model
Raditya Weda Bomantara, Gudapati Naresh Raghava, Longwen Zhou +1
Recent discoveries on topological characterization of gapless systems have attracted interest in both theoretical studies and experimental realizations. Examples of such gapless to…
Floquet Weyl Phases in a Three Dimensional Network Model
Hailong Wang, Longwen Zhou, Yidong Chong
We study the topological properties of 3D Floquet bandstructures, which are defined using unitary evolution matrices rather than Hamiltonians. Previously, 2D bandstructures of this…
Finite-time Landau-Zener processes and counter-diabatic driving in open systems: beyond Born, Markov and Rotating-wave approximations
Zhe Sun, Longwen Zhou, Gaoyang Xiao +2
We investigate Landau-Zener processes modeled by a two-level quantum system, with its finite bias energy varied in time and in the presence of a single broadened cavity mode at zer…
Effects of Dephasing on Quantum Adiabatic Pumping with Nonequilibrium Initial States
Longwen Zhou, Da Yang Tan, Jiangbin Gong
Thouless's quantum adiabatic pumping is of fundamental interest to condensed-matter physics. It originally considered a zero-temperature equilibrium state uniformly occupying all t…
Interband Coherence Induced Correction to Adiabatic Pumping in Periodically Driven Systems
Hailong Wang, Longwen Zhou, Jiangbin Gong
Periodic driving can create topological phases of matter absent in static systems. In terms of the displacement of the position expectation value of a time-evolving wavepacket in a…