102 citations · 1.4k across the 61 of their papers we have counts for
5 papers · 1 filter
Topological order versus many-body localization in periodically modulated spin chains
Takahiro Orito, Yoshihito Kuno, Ikuo Ichinose
In this paper, we study periodically modulated spin chain in a linear gradient potential (LP) that is generated by an external magnetic field. In the absence of the LP, the…
Many-body-localization induced protection of symmetry-protected topological order in a XXZ spin model
Yoshihito Kuno
There is a counter-intuitive expectation proposed by Huse {\it et al} [Phys. Rev. B {\bf 88}, 014206 (2013)], and Chandran {\it et al} [Phys. Rev. B 89,144201 (2014)]: Localization…
Disorder-induced Chern insulator in Harper--Hofstadter--Hatsugai model
Yoshihito Kuno
We study the effects of disorder on the topological Chern insulating phase in the Harper--Hofstadter--Hatsugai (HHH) model. The model with half flux has a bulk band gap and thus ex…
Flat-band many-body localization and ergodicity breaking in the Creutz ladder
Yoshihito Kuno, Takahiro Orito, Ikuo Ichinose
We study disorder-free many-body localization in the flat-band Creutz ladder, which was recently realized in cold-atoms in an optical lattice. In a non-interacting case, the flat-b…
Glassy Dynamics from Quark Confinement: Atomic Quantum Simulation of Gauge-Higgs Model on Lattice
Jonghoon Park, Yoshihito Kuno, Ikuo Ichinose
In the previous works, we proposed atomic quantum simulations of the U(1) gauge-Higgs model by ultra-cold Bose gases. By studying extended Bose-Hubbard models (EBHMs) including lon…