Physics Department

CATEGORY:
Theor./Math. Physics Seminar
TITLE:
Scale separation, topology, and time-reversal invariance
Speaker:
Omri Gat
Affiliation:
HUJI
WHEN:
Sunday
30/04/2017, 14:30
WHERE:
Lewiner, Seminar Room (412)
Organizer:
-
Site:
-
Remarks:
-

Abstract

I will explain how Born-Oppenheimer-like energy surfaces in systems with slow and fast degrees of freedom can acquire non-trivial topology, and how this is affected by time-reversal invariance. I will then analyze time-reversal invariant two-dimensional energy surfaces and show that, in contrast with topological insulators, these are classified by an integer index, and may have a non-zero Chern number.


 


 

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