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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20260415T040140Z
UID:https://www.mpsd.mpg.de/events/10121/42303
DTSTART:20170608T093000Z
DTEND:20170608T103000Z
CLASS:PUBLIC
CREATED:20170601T135927Z
DESCRIPTION: Topological insulators and superconductors are characterized b
 y their gapless boundary modes. In this talk\, we develop a recursive appr
 oach to the boundary Green function which encodes this nontrivial boundary
  physics. Our approach describes the various topologically trivial and non
 trivial phases as fixed points of a recursion and provides direct access t
 o the phase diagram\, the localization properties of the edge modes\, as w
 ell as topological indices. We illustrate our approach in the context of v
 arious familiar models such as the Su-Schrieffer-Heeger model\, the Kitaev
  chain\, and a model for a Chern insulator. We also show that the method p
 rovides an intuitive approach to understand recently introduced topologica
 l phases which exhibit gapless corner states. Ref: Yang Peng\, Yimu Bao\, 
 Felix von Oppen\, arXiv:1704.05862 (2017)\nVortragende(r): Yang Peng
LAST-MODIFIED:20170601T135927Z
LOCATION:CFEL (Bldg. 99)\, Raum: Seminar Room IV\, O1.111
ORGANIZER;CN=Angel Rubio:mailto:
SUMMARY:MPSD Seminar:  Yang Peng - Boundary Green functions of topological 
 insulators and Superconductors 
URL;VALUE=URI:https://www.mpsd.mpg.de/events/10121/42303
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