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

Datum

23.05.2017

Zeit

10:30 - 11:30

Sprecher

Haruki Watanabe

Zugehörigkeit

The University of Tokyo

Sprache

en

Hauptthema

Physik

Andere Themen

Physik

Beschreibung

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

Letztmalig verändert: 23.05.2017, 10:01:53