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SUMMARY:Local basis for interacting topological bands
DTSTART:20260717T053000Z
DTEND:20260717T063000Z
DTSTAMP:20260727T221600Z
UID:indico-event-9386@scitalks.tifr.res.in
DESCRIPTION:Speakers: Nishchhal Verma (Columbia University)\n\nTopology ac
 ts as an obstruction to an exponentially localized\, orthonormal\, and com
 plete basis in real space. In this talk\, I will discuss various ways arou
 nd this obstruction and construct a local basis set using the projected de
 nsity operator. The spectrum of the operator provides a systematic way to 
 identify local orbitals and uncover a natural hierarchy of interaction sca
 les. This framework applies to both tight-binding and continuum models\, a
 nd it offers a universal prescription for reducing the single-particle Hil
 bert space dimension.\n\nhttps://scitalks.tifr.res.in/event/9386/
LOCATION:AG 66 and on Zoom
URL:https://scitalks.tifr.res.in/event/9386/
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