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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-9762
DTSTART:20260928T180000Z
DTEND:20260928T193000Z
DTSTAMP:20261104T064947Z
LAST-MODIFIED:20260924T150718Z
LOCATION:Chamberlin 5280
SUMMARY:Generalized Symmetries and the Dynamics of Gauge Theories\, Th
 eory Seminar (High Energy/Cosmology)\, Zipei Zhang\, University of Wis
 consin-Madison
DESCRIPTION:Symmetry can place exact constraints on a quantum field th
 eory even when its low-energy dynamics are strongly coupled. In this t
 alk\, I will introduce generalized symmetries through topological defe
 cts and background gauge fields\, and explain how ’t Hooft anomalies
  constrain possible infrared phases. I will illustrate these ideas wit
 h the one-form center symmetry of four-dimensional SU(N) Yang–Mills 
 theory and its implications at theta = pi. I will then turn to non-inv
 ertible symmetries in two-dimensional adjoint QCD\, where topological 
 lines give an argument for deconfinement\, and close with a brief look
  at their applications in more phenomenologically relevant gauge theor
 ies.
URL:https://www.physics.wisc.edu/events/?id=9762
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