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HOTI from string theory

日程 : 2021年5月14日(金) 16:00 - 17:00 場所 : On Zoom(事前登録を下記リンク先にてお願い致します) 講師 : Prof. Koji Hashimoto 所属 : Graduate School of Science, Kyoto University 世話人 : 岡 隆史 (63280)
e-mail: oka@issp.u-tokyo.ac.jp

The higher order topological insulators (HOTIs) are a good playground to ask questions on spatial dimensionality in general physics. String theory, as a consistent quantum gravity, has a peculiar ability to control spacetime dimensions to accommodate various physics systems. In 2016, we eventually discovered the notion of continuum HOTI, independently from the major work by Benalcazar et al., where our findings were naturally derived by applying the ideas of solitons, duality, and branes, which are major ingredients used in string theory, to topological materials. This talk explains our path, and discusses the physical origin of the continuum HOTIs from such string-theoretic or field-theoretic viewpoints.


(公開日: 2021年04月30日)