6 papers
Quench dynamics in nonreciprocal Aubry-André-Harper model
Zhiyu Pei, Yongxu Fu, Gao Xianlong
The critical phase of a non-Hermitian quasicrystal can support stronger transport than its surrounding delocalized phase. We demonstrate this anomalous behavior in the one-dimensio…
Dynamical Skin Channels and Effective Loschmidt Cusps
Yongxu Fu
We analytically describe the dynamically separated skin channels (wavepacket evolutions) under periodic boundary condition (PBC) in non-Hermitian systems with anom…
Characterizing Topological Phase Transition in Non-Hermitian Systems
ZhaoXiang Fang, Yongxu Fu, Guang-Can Guo +1
We propose and present a concept of Topological Distance (TD), obtained from the integration of trace distance over the generalized Brillouin zone, in order to characterize the top…
Anatomy of Non-Hermitian Dynamical Quantum Phase Transitions
Yongxu Fu, Gao Xianlong
We establish a unified framework for dynamical quantum phase transitions (DQPTs) in non-Hermitian systems that encompasses both biorthogonal and self-norm non-biorthogonal formulat…
Hermitian and Non-Hermitian Topological Transitions Characterized by Manifold Distance
ZhaoXiang Fang, Ming Gong, Guang-Can Guo +2
Topological phases are generally characterized by topological invariants denoted by integer numbers. However, different topological systems often require different topological inva…
Distance between two manifolds, topological phase transitions and scaling laws
ZhaoXiang Fang, Ming Gong, Guang-Can Guo +2
Topological phases are generally characterized by topological invariants denoted by integer numbers. However, different topological systems often require different topological inva…