3 papers
quant-ph2026
Quasi-Non-Hermitian Edge Bursts Induced by Nonuniform Loss
Ze Yang, Wei Li, Fuxiang Li
Non-Hermitian quantum walks on lossy lattices with open boundaries can exhibit an anomalous peak of the loss probability at the boundary, known as the non-Hermitian edge burst (NHE…
hep-th2026
Effective Field Theory for Superconducting Phase Transitions
Yanyan Bu, Zexin Yang
Employing the Schwinger-Keldysh formalism, we formulate an effective field theory for s-wave superconducting phase transition, where the dynamical variables consist of electromagne…
cond-mat.mes-hall2024
Loop unitary and phase band topological invariant in generic multi-band Chern insulators
Xi Wu, Ze Yang, Fuxiang Li
Quench dynamics of topological phases have been studied in the past few years and dynamical topological invariants are formulated in different ways. Yet most of these invariants ar…