5 citations · 5 across the 10 of their papers we have counts for
10 papers
WannierNLQG: A Julia package for nonlinear optical responses and quantum geometry from Wannier tight-binding models
Zhuocheng Lu, Zhichao Guo, Yuanyuan Xua +2
Nonlinear optical responses and quantum geometry are central to modern condensed matter physics and are deeply intertwined. We introduce WannierNLQG, an extensible Julia framework…
Imaging the Néel Vector in Two-Dimensional Antiferromagnets using Antisymmetric Compton Scattering
Wuxuan Li, Zhuocheng Lu, Jingshan Qi +2
We demonstrate that antisymmetric Compton scattering can detect both the switching and the continuous rotation of the Néel vector in two-dimensional (2D) antiferromagnets. By probi…
Distinguish the Orientation of Sliding Ferroelectricity by Second-Harmonic Generation
Fengfeng Ye, Qiankun Li, Zhuocheng Lu +5
As the emerging ferroelectric (FE) materials, the ultrathin two-dimensional (2D) sliding ferroelectrics without phase-matching bottleneck, usually exhibit the pronounced second har…
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…
Versatile tunable optical injection of chiral polarized Weyl fermions in a magnetic Weyl semimetal Co3Sn2S2
Zipu Fan, Junchao Ma, Jinying Yang +12
Precise probe and control of various quantum degrees of freedom in novel quantum matter are central to understanding fundamental quantum physics and hold promise for innovative rou…
Projector Method for Nonlinear Light-Matter Interactions and Quantum Geometry
Zhichao Guo, Zhuocheng Lu, Hua Wang
We develop a systematic projector-based Feynman diagram framework that intrinsically encodes quantum geometry for nonlinear optical responses. By explicitly incorporating geometric…
Bicircular Light Induced Multi-State Geometric Current
Zhichao Guo, Zhuocheng Lu, Hua Wang +1
We investigate the photocurrent induced by bicircular light (BCL) in materials, with a focus on its multi-state geometric nature. BCL, a combination of left- and right-circularly p…
Pure momentum-shift bulk photovoltaic effect in ferroelectric flat-band Mott insulators
Zhuocheng Lu, Zhihao Gong, Jingshan Qi +2
The shift current photovoltaic effect is conventionally understood as the real-space displacement of a wave packet induced by photoexcitation. However, this interpretation becomes…
Symmetry transformation of nonlinear optical current of tilted Weyl nodes and application to ferromagnetic MnBi2Te4
Zhuocheng Lu, Ji Feng
A Weyl node is characterized by its chirality and tilt. We develop a theory of how th-order nonlinear optical conductivity behaves under transformations of anisotropic tensor an…
Ultra Dual-Path Compression For Joint Echo Cancellation And Noise Suppression
Hangting Chen, Jianwei Yu, Yi Luo +4
Echo cancellation and noise reduction are essential for full-duplex communication, yet most existing neural networks have high computational costs and are inflexible in tuning mode…