172 citations · 1.7k across the 63 of their papers we have counts for
63 papers
Quantum geometry of the non-Hermitian skin effect
Ken-Ichiro Imura, Kohei Kawabata
The non-Hermitian skin effect is nonreciprocity-induced localization phenomena in which a macroscopic number of eigenstates accumulate anomalously at the boundary, accompanied by t…
Probability Conservation and Localization in a One-Dimensional Non-Hermitian System
Yositake Takane, Shion Kobayashi, Ken-Ichiro Imura
We consider transport through a non-Hermitian conductor connected to a pair of Hermitian leads and analyze the underlying non-Hermitian scattering problem. In a typical non-Hermiti…
Entanglement dynamics in the many-body Hatano-Nelson model
Takahiro Orito, Ken-Ichiro Imura
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 one-…
Wave-packet and entanglement dynamics in a non-Hermitian many-body system
Takahiro Orito, Ken-Ichiro Imura
The static and dynamical properties of a one-dimensional quantum system described by a non-Hermitian Hamiltonian of the so-called Hatano-Nelson type; a tight-binding model with asy…
Multi-Dimensional Quantum Walks: a Playground of Dirac and Schrödinger Particles
Manami Yamagishi, Naomichi Hatano, Ken-Ichiro Imura +1
We propose a new multi-dimensional discrete-time quantum walk (DTQW), whose continuum limit is an extended multi-dimensional Dirac equation, which can be further mapped to the Schr…
Unusual wave-packet spreading and entanglement dynamics in non-Hermitian disordered many-body systems
Takahiro Orito, Ken-Ichiro Imura
Non-Hermiticity and dephasing, collaborating in an unusual wave packet dynamics, realizes unconventional entanglement evolution in a disordered, interacting and asymmetric (non-rec…