4 papers · 1 filter
Giant Nonlinear Photon-Drag Currents in Moiré Bilayers
Zhuocheng Lu, Zhuang Qian, Zhichao Guo +4
The bulk photovoltaic effect provides a fundamental pathway for direct light-to-current conversion in quantum materials. However, these nonlinear currents are often strictly constr…
Dissipation-Shaped Quantum Geometry in Nonlinear Transport
Zhichao Guo, Xing-Yuan Liu, Hua Wang +2
The theory of the intrinsic nonlinear Hall effect, a key probe of quantum geometry, is plagued by conflicting expressions for the conductivity that is independent of the dissipatio…
Microscopic Theory of Light-Induced Coherent Phonons Mediated by Quantum Geometry
Jiaming Hu, Zhichao Guo, Wenbin Li +2
Light-induced coherent phonons provide a powerful platform for ultrafast control of material properties. However, the microscopic theory and quantum geometric nature of this phenom…
Optical Manifestations of Quantum Geometry in Electron-Phonon Coupling
Jiaming Hu, Wenbin Li, Zhichao Guo +2
Quantum geometry is crucial for understanding intricate condensed matter systems, governing transport phenomena and optical responses. However, traditional studies predominantly co…