3 papers
cond-mat.mes-hall2026
Universal Dynamical Scaling of Strong-to-Weak Spontaneous Symmetry Breaking in Open Quantum Systems
Chang Shu, Kai Zhang, Zhu-Xi Luo +2
Strong-to-weak spontaneous symmetry breaking (SWSSB) defines a mixed-state phase of matter--without a pure-state counterpart--in which nonlinear observables such as the Rényi-2 cor…
cond-mat.mes-hall2025
Algebraic States in Continuum in Dimensional Non-Hermitian Systems
Ao Yang, Kai Zhang, Chen Fang
We report the existence of algebraically localized eigenstates embedded within the continuum spectrum of 2D non-Hermitian systems with a single impurity. These modes, which we term…
cond-mat.mes-hall2024
Tailoring Bound State Geometry in High-Dimensional Non-Hermitian Systems
Ao Yang, Zixi Fang, Kai Zhang +1
It is generally believed that the non-Hermitian effect (NHSE), due to its non-reciprocal nature, creates barriers for the appearance of impurity bound states. In this paper, we fin…