Non-Hermiticity gives rise to unique topological phases that have no counterparts in
Hermitian systems. Such intrinsic non-Hermitian topological phases appear even in one …

We propose a novel type of skin effects in non-Hermitian quantum many-body systems that
we dub a “non-Hermitian Mott skin effect.” This phenomenon is induced by the interplay …

We present a full symmetry classification of fermion matter in and out of thermal equilibrium.
Our approach starts from first principles, the ten different classes of linear and antilinear state …

Symmetry-breaking transitions are a well-understood phenomenon of closed quantum
systems in quantum optics, condensed matter, and high energy physics. However, symmetry …

We investigate the impact of nonreciprocity on universality and critical phenomena in open
quantum interacting many-body systems. Nonreciprocal open quantum systems often have …

Despite recent extensive studies of the non-Hermitian topology, understanding interaction
effects is left as a crucial question. In this paper, we address interaction effects on …

A one-dimensional Bose-Hubbard model with unidirectional hop** is shown to be exactly
solvable. Applying the algebraic Bethe ansatz method, we prove the integrability of the …

We establish the appearance of a qualitatively new type of spin liquid with emergent
exceptional points when coupling to the environment. We consider an open system of the …

We study the topological properties of Bose-Mott insulators in one-dimensional non-
Hermitian superlattices, which may serve as effective Hamiltonians for cold atomic optical …

Despite recent intensive research on topological aspects of open quantum systems, effects
of strong interactions have not been sufficiently explored. In this paper, we demonstrate that …