專題演講 Seminar

Title

Topological phase and the non-Hermitian skin effect: Multiple perspectives

Speaker

大熊信之副教授 (九州工業大學)

Associate Prof. Nobuyuki Okuma (Kyushu Institute of Technology)

Abstract

Recently, the concepts of topological phases have been extended to non-Hermitian Hamiltonians, whose eigenvalues can be complex. Non-Hermiticity can cause a boundary phenomenon called the non-Hermitian skin effect, which competes with the Hermitian topological boundary phenomenon. Actually, non-Hermiticity itself has topological aspects. In this talk, I will first introduce two interpretations of the relationship between the skin effect and topological phases. Then, I will explain recent research discussing the implementation of the skin effect in quantum systems.

Language

演講語言 (Language): in English

Hosted by

徐晨軒 助研究員
Hsu, Chen-Hsuan / Assistant Research Fellow