237 citations · 542 across the 8 of their papers we have counts for
8 papers
Interaction-induced Liouvillian skin effect in a fermionic chain with a two-body loss
Shu Hamanaka, Kazuki Yamamoto, Tsuneya Yoshida
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…
Localization properties in disordered quantum many-body dynamics under continuous measurement
Kazuki Yamamoto, Ryusuke Hamazaki
We study localization properties of continuously monitored dynamics and associated measurement-induced phase transitions in disordered quantum many-body systems on the basis of the…
Universal description of dissipative Tomonaga-Luttinger liquids with SU() spin symmetry: Exact spectrum and critical exponents
Kazuki Yamamoto, Norio Kawakami
Universal scaling relations for dissipative Tomonaga-Luttinger (TL) liquids with SU() spin symmetry are obtained for both fermions and bosons, by using asymptotic Bethe-ansatz s…
Topological gap labeling with the third Chern numbers in three-dimensional quasicrystals
Kazuki Yamamoto, Mikito Koshino
We study the topological gap labeling of general 3D quasicrystals and we find that every gap in the spectrum is characterized by a set of the third Chern numbers. We show that a qu…
Universal properties of dissipative Tomonaga-Luttinger liquids: Case study of a non-Hermitian XXZ spin chain
Kazuki Yamamoto, Masaya Nakagawa, Masaki Tezuka +2
We demonstrate the universal properties of dissipative Tomonaga-Luttinger (TL) liquids by calculating correlation functions and performing finite-size scaling analysis of a non-Her…
Rectification in Nonequilibrium Steady States of Open Many-Body Systems
Kazuki Yamamoto, Yuto Ashida, Norio Kawakami
We study how translationally invariant couplings of many-particle systems and nonequilibrium baths can be used to rectify particle currents, for which we consider minimal setups to…
Collective Excitations and Nonequilibrium Phase Transition in Dissipative Fermionic Superfluids
Kazuki Yamamoto, Masaya Nakagawa, Naoto Tsuji +2
We predict a new mechanism to induce collective excitations and a nonequilibrium phase transition of fermionic superfluids via a sudden switch-on of two-body loss, for which we ext…
Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction
Kazuki Yamamoto, Masaya Nakagawa, Kyosuke Adachi +3
Motivated by recent experimental advances in ultracold atoms, we analyze a non-Hermitian (NH) BCS Hamiltonian with a complex-valued interaction arising from inelastic scattering be…