Non-hermitian physics
A review is given on the foundations and applications of non-Hermitian classical and
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …
-symmetric, non-Hermitian quantum many-body physics---a methodological perspective
We review the methodology to theoretically treat parity-time-(PT-) symmetric, non-Hermitian
quantum many-body systems. They are realized as open quantum systems with PT …
quantum many-body systems. They are realized as open quantum systems with PT …
Entanglement and correlation spreading in non-Hermitian spin chains
X Turkeshi, M Schiró - Physical Review B, 2023 - APS
Non-Hermitian quantum many-body systems are attracting widespread interest for their
exotic properties, including unconventional quantum criticality and topology. Here, we study …
exotic properties, including unconventional quantum criticality and topology. Here, we study …
Accumulation of scale-free localized states induced by local non-Hermiticity
CX Guo, X Wang, H Hu, S Chen - Physical Review B, 2023 - APS
The bulk states of Hermitian systems are believed insensitive to local Hermitian impurities or
perturbations except for a few impurity-induced bound states. Thus, it is important to ask …
perturbations except for a few impurity-induced bound states. Thus, it is important to ask …
Hybrid scale-free skin effect in non-Hermitian systems: A transfer matrix approach
Y Fu, Y Zhang - Physical Review B, 2023 - APS
Surpassing the individual characteristics of the non-Hermitian skin effect (NHSE) and the
scale-free (SF) effect observed recently, we systematically exploit the exponential decay …
scale-free (SF) effect observed recently, we systematically exploit the exponential decay …
Biorthogonal dynamical quantum phase transitions in non-Hermitian systems
By utilizing biorthogonal bases, we develop a comprehensive framework for studying
biorthogonal dynamical quantum phase transitions in non-Hermitian systems. With the help …
biorthogonal dynamical quantum phase transitions in non-Hermitian systems. With the help …
Statistical mechanics for non-Hermitian quantum systems
K Cao, SP Kou - Physical Review Research, 2023 - APS
We present a systematic study of statistical mechanics for non-Hermitian quantum systems.
Our work reveals that the stability of a non-Hermitian system necessitates the existence of a …
Our work reveals that the stability of a non-Hermitian system necessitates the existence of a …
Diagrammatic Monte Carlo for dissipative quantum impurity models
M Vanhoecke, M Schirò - Physical Review B, 2024 - APS
We develop a diagrammatic Monte Carlo method for the real-time dynamics of dissipative
quantum impurity models. These are small open quantum systems with interaction and local …
quantum impurity models. These are small open quantum systems with interaction and local …
Functional renormalization group for non-Hermitian and -symmetric systems
We generalize the vertex expansion approach of the functional renormalization group to non-
Hermitian systems. As certain anomalous expectation values might not vanish, additional …
Hermitian systems. As certain anomalous expectation values might not vanish, additional …
Zeno crossovers in the entanglement speed of spin chains with noisy impurities
AP Chaudhari, SP Kelly… - Journal of Statistical …, 2022 - iopscience.iop.org
We use a noisy signal with finite correlation time to drive a spin (dissipative impurity) in the
quantum XY spin chain and calculate the dynamics of entanglement entropy (EE) of a …
quantum XY spin chain and calculate the dynamics of entanglement entropy (EE) of a …