Spatial symmetry constraints on topological band structures and phases of spin models

Date

May 23, 2017

Time

10:30 AM - 11:30 AM

Speaker

Haruki Watanabe

Affiliation

The University of Tokyo

Language

en

Main Topic

Physik

Other Topics

Physik

Description

Materials around us posses a space group symmetry once the presence of disorders and the finiteness of the system size are neglected. When this spatial symmetry is taken into account in addition to usual internal symmetries, it is natural to expect a richer structure of topological phases and, at the same time, stronger constraints on possible phases. In this talk, we will discuss our recent studies in this direction for noninteracting systems [1-3] and interacting systems [4,5]. [1] H. C. Po, HW, M. P. Zaletel, and A. Vishwanath, Sci. Adv. 2, e1501782 (2016). [2] HW, H. C. Po, M. P. Zaletel, and A. Vishwanath, Phys. Rev. Lett. 117, 096404 (2016). [3] H. C. Po, A. Vishwanath, and HW, arxiv:1703.00911 [4] HW, H. C. Po, A. Vishwanath, and M. P. Zaletel, PNAS 112, 14551 (2015). [5] H. C. Po, HW, C.-M. Jian, M. P. Zaletel, arxiv:1703.06882

Last modified: May 23, 2017, 10:01:53 AM