Interacting fermionic topological phases with time reversal symmetry

開催日時

2021/04/30(金)15:00〜16:00

開催場所

Online (Zoom)

講演者

小林 良平 氏 (東京大学物性研究所)

言語

English

詳細ページ

お問い合わせ

ryokokur-AT-post.kek.jp


概要

In this talk, we discuss a recipe to produce a lattice construction of fermionic topological phases of matter on unoriented spacetime, which plays a crucial role to study topological phases or anomalies based on the time reversal symmetry. As an application, we construct a gapped boundary for a large class of fermionic SPT phases protected by finite onsite symmetry, based on our path integral description in the presence of boundaries. We will also formulate a local path integral for the (1+1)d topological superconductor in class BDI classified by Z8, and discuss its application to the problem of finding non-local order parameter for the Z8 classification if time permits.