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Magnetic-field-induced nonlinear transport in HfTe5
Cheng Zhang, Jinshan Yang, Zhongbo Yan +8
The interplay of electron correlations and topological phases gives rise to various exotic phenomena including fractionalization, excitonic instability, and axionic excitation. Rec…
Solvable BCS-Hubbard Liouvillians in arbitrary dimensions
Xu-Dong Dai, Fei Song, Zhong Wang
We present the construction of a solvable Lindblad model in arbitrary dimensions, wherein the Liouvillian can be mapped to a BCS-Hubbard model featuring an imaginary interaction. T…
Steady-state edge burst: From free-particle systems to interaction-induced phenomena
Yu-Min Hu, Wen-Tan Xue, Fei Song +1
The interplay between the non-Hermitian skin effect and the imaginary gap of lossy lattices results in the edge burst, a boundary-induced dynamical phenomenon in which an exception…
Green's functions of multiband non-Hermitian systems
Yu-Min Hu, Zhong Wang
Green's functions of non-Hermitian systems play a fundamental role in various dynamical processes. Because non-Hermitian systems are sensitive to boundary conditions due to the non…
Observation of non-Hermitian edge burst in quantum dynamics
Lei Xiao, Wen-Tan Xue, Fei Song +4
The non-Hermitian skin effect, by which the eigenstates of Hamiltonian are predominantly localized at the boundary, has revealed a strong sensitivity of non-Hermitian systems to th…
Scale-free localization and PT symmetry breaking from local non-Hermiticity
Bo Li, He-Ran Wang, Fei Song +1
We show that a local non-Hermitian perturbation in a Hermitian lattice system generically induces scale-free localization for the continuous-spectrum eigenstates. When the perturba…