Zobrazeno 1 - 10
of 277
pro vyhledávání: '"Yasuhiro Hatsugai"'
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:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract Non-Hermitian topology is a recent hot topic in condensed matters. In this paper, we propose a novel platform drawing interdisciplinary attention: rock–paper–scissors (RPS) cycles described by the evolutionary game theory. Specifically,
Externí odkaz:
https://doaj.org/article/9b9a6297845e4e0e8bbcb663563f3f65
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Abstract We provide the first unbiased evidence for a higher-order topological Mott insulator in three dimensions by numerically exact quantum Monte Carlo simulations. This insulating phase is adiabatically connected to a third-order topological insu
Externí odkaz:
https://doaj.org/article/6dab6a7fd9b3409cbcb0b6bbc872ef24
Autor:
Tsuneya Yoshida, Yasuhiro Hatsugai
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Abstract We elucidate that diffusive systems, which are widely found in nature, can be a new platform of the bulk-edge correspondence, a representative topological phenomenon. Using a discretized diffusion equation, we demonstrate the emergence of ro
Externí odkaz:
https://doaj.org/article/ca0d89b92b974e6e83693a64d47e5aa8
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:
Physical Review Research, Vol 2, Iss 3, p 033428 (2020)
Despite previous extensive analysis of open quantum systems described by the Lindblad equation, it is unclear whether correlated topological states, such as fractional quantum Hall states, are maintained even in the presence of the jump term. In this
Externí odkaz:
https://doaj.org/article/5cd9ae8432054181b8817deae820255f
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 022062 (2020)
We analyze the impacts of crystalline symmetry on non-Hermitian skin effects. Focusing on mirror symmetry, we propose another type of skin effect, a mirror skin effect, which results in a significant dependence of the energy spectrum on the boundary
Externí odkaz:
https://doaj.org/article/f8475631564340edb822903bb2109eae
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 012009 (2020)
We propose the Z_{Q} Berry phase as a topological invariant for higher-order symmetry-protected topological (HOSPT) phases for two- and three-dimensional systems. It is topologically stable for electron-electron interactions assuming the gap remains
Externí odkaz:
https://doaj.org/article/92bcc8983266434c912efb5d29cba941
Publikováno v:
New Journal of Physics, Vol 19, Iss 3, p 035003 (2017)
A mechanical diamond, with the classical mechanics of a spring-mass model arrayed on a diamond lattice, is discussed topologically. Its frequency dispersion possesses an intrinsic nodal structure in the three-dimensional Brillouin zone (BZ) protected
Externí odkaz:
https://doaj.org/article/cacf23ade47c45919964dff982bf741f
Autor:
Tohru Kawarabayashi, Yasuhiro Hatsugai
Publikováno v:
Proceedings of the 29th International Conference on Low Temperature Physics (LT29).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::104f02ac72d4eefd113858d1c945876a
https://doi.org/10.7566/jpscp.38.011173
https://doi.org/10.7566/jpscp.38.011173