Skin modes in a nonlinear Hatano-Nelson model
Non-Hermitian lattices with nonreciprocal couplings under open boundary conditions are
known to possess linear modes exponentially localized on one edge of the chain. This …
known to possess linear modes exponentially localized on one edge of the chain. This …
Exceptional points and exponential sensitivity for periodically driven Lindblad equations
In this contribution to the memorial issue of Göran Lindblad, we investigate the periodically
driven Lindblad equation for a two-level system. We analyze the system using both adiabatic …
driven Lindblad equation for a two-level system. We analyze the system using both adiabatic …
Non-Hermitian Haldane-Hubbard model: Effective description of one-and two-body dissipation
Using numerically exact diagonalization, we study the correlated Haldane-Hubbard model
in the presence of dissipation. Such dissipation can be modeled at short times by the …
in the presence of dissipation. Such dissipation can be modeled at short times by the …
Exploring the impact of fluctuation-induced criticality on non-Hermitian skin effect and quantum sensors
C Ehrhardt, J Larson - Physical Review Research, 2024 - APS
In this paper we present a concrete example comparing the results predicted by non-
Hermitian quantum mechanics with those of a more comprehensive description that …
Hermitian quantum mechanics with those of a more comprehensive description that …
Quantum implementation of non-unitary operations with biorthogonal representations
Motivated by the contemporary advances in quantum implementation of non-unitary
operations, we propose a new dilation method based on the biorthogonal representation of …
operations, we propose a new dilation method based on the biorthogonal representation of …
Non-Hermitian Topology with Generalized Chiral Symmetry
A Westström, W Duan, J Li - arxiv preprint arxiv:2403.18268, 2024 - arxiv.org
We study a generalization of chiral symmetry applicable to non-Hermitian systems and its
topological consequences on one-dimensional chains. We uncover a rich family of …
topological consequences on one-dimensional chains. We uncover a rich family of …
Bulk-boundary correspondence and biorthogonality in non-Hermitian systems
E Edvardsson - 2022 - diva-portal.org
In topological insulators, the bulk-boundary correspondence describes the relationship
between the bulk invariant--computed for a system with periodic boundary conditions--and …
between the bulk invariant--computed for a system with periodic boundary conditions--and …