アクセス数 Since 2009
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会議 & 研究会
ResercherID: Y. Hatsugai
Coming event : Program is ready: International workshop "physics of bulk-edge correspondence & its universality"
投稿者 : hatsugai 投稿日時： 2015-09-14 19:50:18 (556 ヒット)
We are organizing an international workshop on the bulk-edge correspondence / topological phases Sep. 27-29 (2015) in Tokyo (Myogadani) supported by KAKENHI (JSPS research funding). Tentative program is ready and on the net.
投稿者 : hatsugai 投稿日時： 2015-09-14 19:44:26 (149 ヒット)
Looking at the Landau-Lifshitz again for mechanics, a simple classical system is redescribed topologically. Hannay angle as a classical correspondent of the Berry phase is discussed in relation to the symmetry protection and the bulk-edge correspondence. (arxiv:1508.06946)
投稿者 : hatsugai 投稿日時： 2015-06-18 12:07:17 (276 ヒット)
Topology is not only for quantum world. Localised modes near the system boundaries also exist in a classical system that is predicted by bulk. This is the bulk-edge correspondence originally discussed in quantum systems such as quantum (spin) Hall states and graphene. Still this idea is valid in classical world. We discussed topological phenomena in mechanics for point particles connected with springs in a honeycomb shape. Also topological phase transitions associated with its tension is clearly demonstrated as a time evolution of the localized modes. [arXiv:1505.06679]