Non-hermitian physics

Y Ashida, Z Gong, M Ueda - Advances in Physics, 2020 - Taylor & Francis
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 …

Non-Hermitian topological phases: principles and prospects

A Banerjee, R Sarkar, S Dey… - Journal of Physics …, 2023 - iopscience.iop.org
The synergy between non-Hermitian concepts and topological ideas have led to very fruitful
activity in the recent years. Their interplay has resulted in a wide variety of new non …

Symmetry breaking and spectral structure of the interacting Hatano-Nelson model

SB Zhang, MM Denner, T Bzdušek, MA Sentef… - Physical review B, 2022 - APS
We study the Hatano-Nelson model, ie, a one-dimensional non-Hermitian chain of spinless
fermions with nearest-neighbor nonreciprocal hopping, in the presence of repulsive nearest …

Emergent entanglement phase transitions in non-Hermitian Aubry-André-Harper chains

SZ Li, XJ Yu, Z Li - Physical Review B, 2024 - APS
We investigate the entanglement dynamics of the non-Hermitian Aubry-André-Harper chain.
The results reveal that by increasing quasiperiodic strength, a phase transition occurs from …

Many-body localization in a non-Hermitian quasiperiodic system

LJ Zhai, S Yin, GY Huang - Physical Review B, 2020 - APS
In the present study, the interplay among interaction, topology, quasiperiodicity, and non-
Hermiticity is studied. The hard-core bosons model on a one-dimensional lattice with …

Phase transitions and bunching of correlated particles in a non-Hermitian quasicrystal

S Longhi - Physical Review B, 2023 - APS
Noninteracting particles in non-Hermitian quasicrystals display localization-delocalization
and spectral phase transitions in complex energy plane that can be characterized by point …

Critical non-Hermitian topology induced quantum sensing

S Sarkar, F Ciccarello, A Carollo… - New Journal of …, 2024 - iopscience.iop.org
Non-Hermitian (NH) physics predicts open quantum system dynamics with unique
topological features such as exceptional points and the NH skin effect. We show that this …

Unusual wave-packet spreading and entanglement dynamics in non-Hermitian disordered many-body systems

T Orito, KI Imura - Physical Review B, 2022 - APS
Non-Hermiticity and dephasing, collaborating in an unusual wave-packet dynamics, realize
unconventional entanglement evolution in a disordered, interacting, and asymmetric …

Spectral properties of disordered interacting non-Hermitian systems

S Ghosh, S Gupta, M Kulkarni - Physical Review B, 2022 - APS
Non-Hermitian systems have gained a lot of interest in recent years. However, notions of
chaos and localization in such systems have not reached the same level of maturity as in the …

Entanglement dynamics in the many-body Hatano-Nelson model

T Orito, KI Imura - Physical Review B, 2023 - APS
The entanglement dynamics in a non-Hermitian quantum system is studied numerically and
analyzed from the viewpoint of quasiparticle picture. As a concrete model, we consider a …