17 citations · 26 across the 9 of their papers we have counts for
12 papers
Exciton-driven coherent dressing in transient absorption
Jinyuan Wu, Chang Shu, Yang-hao Chan +1
While coherent excitons have recently been observed to dress electronic states in time- and angle-resolved photoemission spectroscopy (tr-ARPES), exciton-driven dressing in optical…
Altermagnetism produces pair emission and absorption from dark excitons and magnons in LaOMnSe
Birender Singh, Xian Xu, Sabrina R. Hatt +21
Altermagnets' (AMs) non-relativistic spin splitting enables novel states, spintronic and magneto-optical devices, though their optical signatures remain elusive. Here, we report ex…
Gauge-Equivariant Representation Learning of Bloch States
Chengyan Zhang, Xian Xu, Bowen Hou +1
Representation learning, or featurization, of mean-field Bloch states provides an important route for incorporating electronic information into machine-learning models of first-pri…
What is the signature of a trion in photoemission?
Jinyuan Wu, Zachary H. Withers, Thomas K. Allison +1
Recent advances in time- and angle-resolved photoemission spectroscopy (tr-ARPES) allow for the probing of multiparticle excited-states in reciprocal space. While neutral two-parti…
MBFormer: A General Transformer-based Learning Paradigm for Many-body Interactions in Real Materials
Bowen Hou, Xian Xu, Jinyuan Wu +1
Recently, radical progress in machine learning (ML) has revolutionized computational materials science, enabling unprecedentedly rapid materials discovery and property prediction,…
Direct Observation of Massless Excitons and Linear Exciton Dispersion
Luna Y. Liu, Steffi Y. Woo, Jinyuan Wu +3
Excitons -- elementary excitations formed by bound electron-hole pairs -- govern the optical properties and excited-state dynamics of materials. In two-dimensions (2D), excitons ar…
Moiré-Tunable Localization of Simultaneous Type I and Type II Band Alignment in a MoSe2/WS2 Heterobilayer
Jiaxuan Guo, Zachary H. Withers, Ziling Li +9
Moiré heterobilayers exhibiting spatially varying band alignment and electron and hole localization that can be precisely controlled through the twist angle have emerged as excitin…
Data-driven Low-rank Approximation for Electron-hole Kernel and Acceleration of Time-dependent GW Calculations
Bowen Hou, Jinyuan Wu, Victor Chang Lee +3
Many-body electron-hole interactions are essential for understanding non-linear optical processes and ultrafast spectroscopy of materials. Recent first principles approaches based…
Optical absorption spectroscopy probes water wire and its ordering in a hydrogen-bond network
Fujie Tang, Diana Y. Qiu, Xifan Wu
Water wires, quasi-one-dimensional chains composed of hydrogen-bonded (H-bonded) water molecules, play a fundamental role in numerous chemical, physical, and physiological processe…
Unsupervised Learning of Individual Kohn-Sham States: Interpretable Representations and Consequences for Downstream Predictions of Many-Body Effects
Bowen Hou, Jinyuan Wu, Diana Y. Qiu
Representation learning for the electronic structure problem is a major challenge of machine learning in computational condensed matter and materials physics. Within quantum mechan…
Driving non-trivial quantum phases in conventional semiconductors with intense excitonic fields
Vivek Pareek, David R. Bacon, Xing Zhu +12
Inducing novel quantum phases and topologies in materials using intense light fields is a key objective of modern condensed matter physics, but nonetheless faces significant experi…
Probabilistic forecast of nonlinear dynamical systems with uncertainty quantification
Mengyang Gu, Yizi Lin, Victor Chang Lee +1
Data-driven modeling is useful for reconstructing nonlinear dynamical systems when the underlying process is unknown or too expensive to compute. Having reliable uncertainty assess…