Non-Hermitian squeezed polarons

F Qin, R Shen, CH Lee - Physical Review A, 2023 - APS
… , many-body non-Hermitian quantum phenomena. In this … non-Hermitian phenomenon
dubbed polaron squeezing. We … impurity in a background of non-Hermitian reciprocity-breaking …

Dissipative-interaction-induced polaron-molecule transition in three-dimensional Fermi polarons

L Yang - Physical Review A, 2024 - APS
… Other interesting phenomena, such as non-Hermitian squeezed polarons and quantum-…
We start from the 3D Fermi polaron with non-Hermitian the Fermion-impurity interaction induced …

Pairing-dependent particle separation in non-Hermitian fermionic systems

Y Qin, L Li - arXiv preprint arXiv:2307.07964, 2023 - arxiv.org
non-Hermitian pumping. Specifically, a strong spin flipping term reverses the direction of
non-Hermitian … Our work unveils the possibility of designing and exploring novel non-Hermitian

Enhanced many-body quantum scars from the non-Hermitian Fock skin effect

R Shen, F Qin, JY Desaules, Z Papić, CH Lee - Physical Review Letters, 2024 - APS
non-Hermitian scars is their enhanced robustness against external disorders. We propose an
experimental realization of the non-Hermitian … the following nonHermitian generalization of …

Non-Hermitian pseudomodes for strongly coupled open quantum systems: Unravelings, correlations, and thermodynamics

P Menczel, K Funo, M Cirio, N Lambert, F Nori - Physical Review Research, 2024 - APS
… We also provide an unraveling of the master equation into quantum jump trajectories of
non-Hermitian states, which further facilitates the utilization of the pseudomode technique for …

Anomalous skin effects in disordered systems with a single non-Hermitian impurity

P Molignini, O Arandes, EJ Bergholtz - Physical Review Research, 2023 - APS
… We explore anomalous skin effects at non-Hermitian impurities by studying their interplay with
… persists even in the limit of an entirely Hermitian bulk with a single non-Hermitian impurity. …

Enhancement of second-order non-Hermitian skin effect by magnetic fields

CA Li, B Trauzettel, T Neupert, SB Zhang - Physical Review Letters, 2023 - APS
… To better illustrate our results, we first consider 2D nonHermitian systems in which FOSE
is absent but SOSE can be present. The absence of FOSE is achieved by imposing certain …

Bose polarons near quantum criticality

ZZ Yan, Y Ni, C Robens, MW Zwierlein - Science, 2020 - science.org
… Predicting the Bose polaron’s fate upon entering the regime of strong … polaron increases
further at nonzero temperatures (41, 42). Even for weak interactions, the decay rate of polarons

Unified algebraic method to non-Hermitian systems with Lie algebraic linear structure

HB Zhang, GY Jiang, GC Wang - Journal of Mathematical Physics, 2015 - pubs.aip.org
… As an application, we focus on studying the non-Hermitian single-mode squeezed and
coherent harmonic oscillator system and find that such similarity transformation associated with …

Designing non-Hermitian real spectra through electrostatics

R Yang, JW Tan, T Tai, JM Koh, L Li, S Longhi, CH Lee - Science Bulletin, 2022 - Elsevier
non-Hermitian couplings can lead to real spectra and hence stable eigenstates. Non-Hermitian
indefinitely, whilst retaining novel non-Hermitian properties. Unlike the conventional …