2 papers
cond-mat.mtrl-sci2026
Ab initio time-dependent GW approach for nonequilibrium exciton-phonon coupled dynamics across momentum space
Zhenfa Zheng, Benran Zhang, Jiawei Ruan +10
The dynamics of optical excitations in materials generally involves intertwined electron-hole (e-h) and electron-phonon (e-ph) interactions out of equilibrium. However, a full theo…
cond-mat.mtrl-sci2025
Ab initio study of exciton insulator phase: Emergent -wave spin textures from spontaneous excitonic condensation
Fang Zhang, Jiawei Ruan, Gurjyot Sethi +2
An excitonic insulator (EI) is a correlated many-body state of electron-hole pairs, potentially leading to high-temperature condensate and superfluidity. Despite ev…