We review the methodology to theoretically treat parity-time-(PT-) symmetric, non-Hermitian
quantum many-body systems. They are realized as open quantum systems with PT …

Non-Hermitian quantum many-body systems are attracting widespread interest for their
exotic properties, including unconventional quantum criticality and topology. Here, we study …

The interplay between dissipation, topology, and sensitivity to boundary conditions has
recently attracted tremendous amounts of attention at the level of effective non-Hermitian …

Exotic quantum phases and phase transition in the strongly interacting Dirac systems have
attracted tremendous interests. On the other hand, non-Hermitian physics, usually …

A one-dimensional dissipative Hubbard model with two-body loss is shown to be exactly
solvable. We obtain an exact eigenspectrum of a Liouvillian superoperator by employing a …

Spectral functions of non-Hermitian Hamiltonians can reveal the existence of topologically
nontrivial line gaps and the associated topological edge modes. However, the computation …

Non-Hermitian skin effect (NHSE) is a unique feature studied extensively in noninteracting
non-Hermitian systems. In this paper, we extend the NHSE originally discovered in …

We study an interacting one-dimensional gas of spin-1/2 fermions with two-body losses. The
dynamical phase diagram that characterizes the approach to the stationary state displays a …

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 …

Universal scaling relations for dissipative Tomonaga-Luttinger (TL) liquids with SU (N) spin
symmetry are obtained for both fermions and bosons, by using asymptotic Bethe-ansatz …