3 papers
cond-mat.str-el2025
Electronic Phonons in a Moiré Electron Crystal
Yan Zhao, Yuhang Hou, Xiangbin Cai +12
Collective quantum phenomena, such as the excitation of composite fermions1, spin waves2, and exciton condensation3,4, can emerge in strongly correlated systems like the fractional…
quant-ph2025
Dual-channel Transfer and Modulation of Optical Vortices in a Ladder-Type System
Yazhi Shan, Yan Zhang
We propose a dual-channel closed-loop structure within a symmetry-broken ladder-type three-level quantum system, where each channel incorporates three-wave mixing (TWM) processes.…
physics.optics2024
Controllable generation and spatial phase-modulation of vortex beams in cascade-type atomic ensembles
Yueqian Li, Yan Zhang
We propose a four-level cascade-type atomic system in which two reverse four-wave mixing (FWM) processes can coexist via optical transitions in distinct pathways. This enables the…