137 citations · 1.3k across the 39 of their papers we have counts for
7 papers · 1 filter
Monte Carlo solver and renormalization of Migdal-Eliashberg spin chain
Yang-Zhi Chou, Zhentao Wang, Sankar Das Sarma
Motivated by the recently developed classical spin model for Migdal-Eliashberg theory, we develop new numerical and analytical methods based on this spin-chain representation and a…
Enhanced superconductivity through virtual tunneling in Bernal bilayer graphene coupled to WSe
Yang-Zhi Chou, Fengcheng Wu, Sankar Das Sarma
Motivated by a recent experiment [arXiv:2205.05087], we investigate a possible mechanism that enhances superconductivity in hole-doped Bernal bilayer graphene due to a proximate WS…
Acoustic-phonon-mediated superconductivity in moiréless graphene multilayers
Yang-Zhi Chou, Fengcheng Wu, Jay D. Sau +1
We investigate the competition between acoustic-phonon-mediated superconductivity and the long-range Coulomb interaction in moiréless graphene multilayers, specifically, Bernal bil…
Acoustic-phonon-mediated superconductivity in Bernal bilayer graphene
Yang-Zhi Chou, Fengcheng Wu, Jay D. Sau +1
We present a systematic theory of acoustic-phonon-mediated superconductivity, which incorporates Coulomb repulsion, explaining the recent experiment in Bernal bilayer graphene unde…
Acoustic-phonon-mediated superconductivity in rhombohedral trilayer graphene
Yang-Zhi Chou, Fengcheng Wu, Jay D. Sau +1
Motivated by the observation of two distinct superconducting phases in the moiréless ABC-stacked rhombohedral trilayer graphene, we investigate the electron-acoustic-phonon couplin…
Correlation-induced triplet pairing superconductivity in graphene-based moiré systems
Yang-Zhi Chou, Fengcheng Wu, Jay D. Sau +1
Motivated by the possible non-spin-singlet superconductivity in the magic-angle twisted trilayer graphene experiment, we investigate the triplet-pairing superconductivity arising f…
Twisting Anderson pseudospins with light: Quench dynamics in THz-pumped BCS superconductors
Yang-Zhi Chou, Yunxiang Liao, Matthew S. Foster
We study the preparation (pump) and the detection (probe) of far-from-equilibrium BCS superconductor dynamics in THz pump-probe experiments. In a recent experiment [R. Matsunaga, Y…