Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Yoshihito Kuno"'
Autor:
Kenichi Yatsugi, Tsuneya Yoshida, Tomonari Mizoguchi, Yoshihito Kuno, Hideo Iizuka, Yukihiro Tadokoro, Yasuhiro Hatsugai
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-8 (2022)
The bulk-boundary correspondence and Chern number are well-known features of non-trivial topological systems. Here, the authors confirm the bulk-edge correspondence by observing pumping in a one-dimensional topological electric circuit emulating a Ch
Externí odkaz:
https://doaj.org/article/555d3e9e66174ab4a4d185c12c1691aa
Publikováno v:
New Journal of Physics, Vol 24, Iss 7, p 073019 (2022)
Novel cluster spin model with interactions and disorder is introduced and studied. In specific type of interactions, we find an extensive number of local integrals of motions (LIOMs), which are a modified version of the stabilizers in quantum informa
Externí odkaz:
https://doaj.org/article/1642e38a2e64447ba03ef3d3e649713f
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-13 (2018)
Abstract The Dirac fermion is an important fundamental particle appearing in high-energy physics and topological insulator physics. In particular, a Dirac fermion in a one-dimensional lattice system exhibits the essential properties of topological ph
Externí odkaz:
https://doaj.org/article/f88c67be2f73486c92b9e2481aab6673
Autor:
Yoshihito Kuno, Yasuhiro Hatsugai
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 042024 (2020)
Based on a topological transition of the symmetry-protected topological phase (SPT), an interaction-induced topological charge pump (iTCP) is proposed with the symmetry-breaking parameter as a synthetic dimension. It implies that the phase boundary o
Externí odkaz:
https://doaj.org/article/1f6a3d6b84244267b47c4d079c9767ca
Publikováno v:
New Journal of Physics, Vol 22, Iss 1, p 013032 (2020)
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-band structure of the system leads to a Wannier wavefunction localized
Externí odkaz:
https://doaj.org/article/6c8f2304dadc47dc814b86db005f9d13
Publikováno v:
Physical Review A. 106
Tripartite mutual information (TMI) is an efficient observable to quantify the ability of scrambler for unitary time-evolution operator with quenched many-body Hamiltonian. In this paper, we give numerical demonstrations of the TMI in disorder-free (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f646aaa49d8ece1afee6c755f18853f
https://doi.org/10.1103/physreva.106.012435
https://doi.org/10.1103/physreva.106.012435
Autor:
Yoshiro Takahashi, Yoshihito Kuno, Pasquale Marra, Nobuyuki Takei, Shuta Nakajima, Keita Sakuma
Publikováno v:
Nature Physics. 17:844-849
Robustness against perturbations lies at the heart of topological phenomena. If, however, a perturbation such as disorder becomes dominant, it may cause a topological phase transition between topologically non-trivial and trivial phases. Here we expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd755ed1fe5af792841182d950a839e4
https://doi.org/10.1038/s41567-021-01229-9
https://doi.org/10.1038/s41567-021-01229-9
Autor:
Yoshihito Kuno
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 032026 (2019)
There is a counterintuitive expectation proposed by Huse et al. [Phys. Rev. B 88, 014206 (2013)PRBMDO1098-012110.1103/PhysRevB.88.014206] and Chandran et al. [Phys. Rev. B 89, 144201 (2014)PRBMDO1098-012110.1103/PhysRevB.89.144201]: Localization prot
Externí odkaz:
https://doaj.org/article/5dcbee417a43497a9c7db955d4aefb59
Quantum information spreading and scrambling in many-body systems attract interests these days. Tripartite mutual information (TMI) based on operator-based entanglement entropy (EE) is an efficient tool for measuring them. In this paper, we study ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f25035ba05e534982f68a0c98ac88f2
http://arxiv.org/abs/2205.03008
http://arxiv.org/abs/2205.03008
Publikováno v:
Physical Review B. 105
We numerically study the random-hopping fermions (the Cruetz ladder) with repulsion and investigate how the interactions deform localized eigenstates by means of the one particle-density matrix (OPDM). The ground state exhibits resurgence of localiza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b255dad50325d2cf0bd1c2a78959dba5
https://doi.org/10.1103/physrevb.105.094201
https://doi.org/10.1103/physrevb.105.094201