BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Meng Hua\, University of Virginia - Physics\n\n
An interesting th eme in topological materials has been classification and prediction of sym metry protected topological(SPT) phases. Despite the Altland-Zirnbauer(AZ) classification under time-reversal symmetry\, particle-hole symmetry and chiral symmetry\, a system can also be invariant under a combined symmetry composed by two distinct operations. In this talk I will discuss the clas sification of nodal topological phases under two-fold spatial antiunitary symmetries. We also generalize SPT phases to non-Hermitian system with two -fold spatial antiunitary symmetries and give an example of dissipative to pological superconductors.
\n DTSTART:20190426T170000Z LOCATION:Physics Building\, Room 205 SUMMARY:Topological phases with two-fold spatial antiunitary symmetries END:VEVENT END:VCALENDAR