670 citations · 2.8k across the 53 of their papers we have counts for
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Bulk-Boundary Correspondence in a Non-Hermitian System in One Dimension with Chiral-Inversion Symmetry
L. Jin, Z. Song
Asymmetric coupling amplitudes effectively create an imaginary gauge field, which induces a non-Hermitian Aharonov-Bohm (AB) effect. Nonzero imaginary magnetic flux invalidates the…
Classical correspondence of the exceptional points in the finite non-Hermitian system
X. Z. Zhang, G. Zhang, Z. Song
We systematically study the topology of the exceptional point (EP) in the finite non-Hermitian system. Based on the concrete form of the Berry connection, we demonstrate that the e…
Dynamical topological invariant for non-Hermitian Rice-Mele model
R. Wang, X. Z. Zhang, Z. Song
We study a non-Hermitian Rice-Mele model without breaking time-reversal symmetry, with the non-Hermiticity arising from imbalanced hopping rates. The Berry connection, Berry curvat…
Simple harmonic oscillation in non-Hermitian SSH chain at exceptional point
K. L. Zhang, P. Wang, G. Zhang +1
The balance of gain and loss in an open system may maintain certain Hermitian dynamical behaviors, which can be hardly observed in a popular Hermitian system. In this paper, we sys…
Incident Direction Independent Wave Propagation and Unidirectional Lasing
L. Jin, Z. Song
We propose an incident direction independent wave propagation generated by properly assembling different unidirectional destructive interferences (UDIs), which is a consequence of…
Dynamical bulk-edge correspondence for nodal lines in parameter space
R. Wang, C. Li, X. Z. Zhang +1
Nodal line in parameter space, at which the energy gap closes up, can either be the boundary separating two topological quantum phases or two conventional phases. We study the topo…