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SUMMARY:Po-Shen Hsin (Caltech)
DTSTART:20201218T030000Z
DTEND:20201218T040000Z
DTSTAMP:20260423T021305Z
UID:EASW/14
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/EASW/14/">Ap
 plications of Berry phase in quantum field theory</a>\nby Po-Shen Hsin (Ca
 ltech) as part of East Asian String Webinars\n\n\nAbstract\nWe will discus
 s Berry phase in family of quantum field theories and its implication to t
 he low energy physics. The family is labelled by parameters which we promo
 te to be spacetime-dependent background fields\, and the Berry phase is eq
 uivalent to topological term of the parameters in the effective action. We
  use Berry phase to study diabolic points in the phase diagram and discuss
  applications including deconfined quantum criticality in 2+1d and new tes
 ts for boson/fermion dualities.\n
LOCATION:https://researchseminars.org/talk/EASW/14/
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