44 citations · 268 across the 14 of their papers we have counts for
4 papers · 1 filter
Probing the superfluid-insulator phase transition by a non-Hermitian external field
X. Z. Zhang, Z. Song
We study the response of a thermal state of the Hubbard-like system to either global or local non-Hermitian perturbation, which coalesces the degenerate ground state within the $U(…
-pairing ground states in the non-Hermitian Hubbard model
X. Z. Zhang, Z. Song
The introduction of non-Hermiticity has greatly enriched the research field of traditional condensed matter physics, and eventually led to a series of discoveries of exotic phenome…
Dynamical preparation of a steady ODLRO state in the Hubbard model with local non-Hermitian impurity
X. Z. Zhang, Z. Song
The cooperation between non-Hermiticity and interaction brings about a lot of counterintuitive behaviors, which are impossible to exist in the framework of the Hermitian system. We…
Dynamic magnetization in non-Hermitian quantum spin system
X. Z. Zhang, L. Jin, Z. Song
We report a global effect induced by the local complex field, associated with the spin-exchange interaction. High-order exceptional point up to ()-level coalescence is created…