72 citations · 223 across the 12 of their papers we have counts for
12 papers
Symmetry protected topological phases characterized by isolated exceptional points
S. Lin, L. Jin, Z. Song
Exceptional point (EP) associated with eigenstates coalescence in non-Hermitian systems has many exotic features. The EPs are generally sensitive to system parameters, here we repo…
Maximal distant entanglement in Kitaev tube
P. Wang, S. Lin, G. Zhang +1
We study the Kitaev model on a finite-size square lattice with periodic boundary conditions in one direction and open boundary conditions in the other. Based on the fact that the M…
Topological nodal points in two coupled SSH chains
Ci. Li, Sen. Lin, Gang. Zhang +1
We study two coupled Su-Schrieffer-Heeger (SSH) chains system, which is shown to contain rich quantum phases associated with topological invariants protected by symmetries. In the…
Parallel dynamics between non-Hermitian and Hermitian systems
P. Wang, S. Lin, L. Jin +1
We study the connection between a family of non-Hermitian Hamiltonians H and Hermitian ones H based on exact solutions. In general, for a dynamic process in a non-Hermitian system…
Wide-range-tunable Dirac-cone band structure in a chiral-time-symmetric non-Hermitian system
S. Lin, Z. Song
We establish a connection between an arbitrary Hermitian tight-binding model with chiral (C) symmetry and its non-Hermitian counterpart with chiral-time (CT ) symmetry.We show that…
Quantum phase transition induced by real-space topology
C. Li, G. Zhang, S. Lin +1
A quantum phase transition (QPT), including both topological and symmetry breaking types, is usually induced by the change of global parameters, such as external fields or global c…
Long-range entangled zero-mode state in a non-Hermitian lattice
S. Lin, X. Z. Zhang, C. Li +1
In contrast to a Hermitian system, in which zero modes are usually degenerate and localized edge state in the thermodynamic limit, the zero mode of a finite non-Hermitian system ca…
Magnetic-flux-driven topological quantum phase transition and manipulation of perfect edge states in graphene tube
S. Lin, G. Zhang, C. Li +1
We study the tight-binding model for a graphene tube with perimeter N threaded by a magnetic field. We show exactly that this model has different nontrivial topological phases as t…
Non-Hermitian heat engine with all-quantum-adiabatic-process cycle
S. Lin, Z. Song
As a quantum device, a quantum heat engine (QHE) is described by a Hermitian Hamiltonian.However, since it is an open system, reservoirs have to be imposed phenomenologically witho…
Quench field sensitivity of two-particle correlation in a Hubbard model
X. Z. Zhang, S. Lin, Z. Song
Short-range interaction can give rise to particle pairing with a short-range correlation, which may be destroyed in the presence of an external field. We study the transition betwe…
Sudden death of particle-pair Bloch oscillation and unidirectional propagation in a one-dimensional driven optical lattice
S. Lin, X. Z. Zhang, Z. Song
We study the dynamics of bound pairs in the extended Hubbard model driven by a linear external field. It is shown that two interacting bosons or singlet fermions with nonzero on-si…
Amplitude control of a quantum state in a non-Hermitian Rice-Mele model driven by an external field
S. Lin, X. Z. Zhang, Z. Song
In the Hermitian regime, a Berry phase is always the real number. It may be imaginary for a non-Hermitian system, which leads to amplitude amplification or attenuation of an evolve…