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DTSTART;TZID=Europe/Berlin:20240709T161500
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DTSTAMP:20260504T134147
CREATED:20250707T133530Z
LAST-MODIFIED:20250829T140653Z
UID:10000107-1720541700-1720541700@www.trr352.de
SUMMARY:A new bulk Z_2 invariant for interacting phases
DESCRIPTION:The stability of topological indices of condensed matter systems in the p resence of interactions is not expected to hold universally. In this colloquium\, I will first discuss the mathematical setup of the classification of interacting phases. I will then focus on a new Z_2 – valued index for time-reversal invariant interacting fermions on infinite lattices and prove its topological stability. I will show that it generalizes the well -known Fu-Kane-Mele index of topological insulators\, thereby proving its stability under large perturbations. This is joint work with Alex Bols and Mahsa Rahnama.
URL:https://www.trr352.de/event/a-new-bulk-z_2-invariant-for-interacting-phases/
LOCATION:Room 5610.EG.011 (CIT Sitzungsraum 1)\, Boltzmannstr. 3\, Garching b. München\, 85748\, Germany
CATEGORIES:Colloquia
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