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TZID:Europe/Vienna
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DTSTART:20230326T030000
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DTSTAMP:20241006T133335Z
UID:1697544900@ist.ac.at
DTSTART:20231017T141500
DTEND:20231017T151500
DESCRIPTION:Speaker: Jacob Shapiro\nhosted by Laszlo ErdÃ¶s\nAbstract: In t
his talk I will describe some of the mathematical aspects of disordered to
pological insulators. These are novel materials which insulate in their bu
lk but (may) conduct along their edge\; the quintessential example is that
of the integer quantum Hall effect. What characterizes these materials is
the existence of a topological index\, experimentally measurable and macr
oscopically quantized. Mathematically this is explained by applying algebr
aic topology to the space of appropriate quantum mechanical Hamiltonians\;
I will survey some recent results mainly concentrating on the classificat
ion problem in one dimension\, where the problem reduces to studying space
s of unitaries (resp. orthogonal projections) which essentially-commute wi
th a fixed projection.
LOCATION:Heinzel Seminar Room (I21.EG.101)\, Office Building West\, ISTA\,
ISTA
ORGANIZER:birgit.oosthuizen-noczil@ist.ac.at
SUMMARY:Jacob Shapiro: Classification of disordered insulators in 1D
URL:https://talks-calendar.ista.ac.at/events/4450
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