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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2872
DTSTART:20130315T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260412T060709Z
LAST-MODIFIED:20130228T001440Z
LOCATION: 5310 Chamberlin
SUMMARY:Instantons on R^3 x S^1 and a semi-classical realization of IR
  renormalons\, Theory Seminar (High Energy/Cosmology)\, Phillip Argyre
 s\, Cincinnati
DESCRIPTION:We study the semi-classical dynamics of four dimensional g
 auge theories with adjoint fermions compactified on a circle with peri
 odic boundary conditions for the fermions. There are monopole-instanto
 ns (with fermion zero modes) and two types of monopole--anti-monopole 
 molecules\, called bions. The plasma of the type-one bions--- which ca
 rry net magnetic charge---induces a mass gap for gauge fluctuations. T
 he type-two bion is both topologically and magnetically neutral\, and 
 its understanding requires a generalization of multi-instanton techniq
 ues in quantum mechanics to compactified field theory. We conjecture t
 hat it is the semi-classical realization of four-dimensional IR renorm
 alons.
URL:https://www.physics.wisc.edu/events/?id=2872
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