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SUMMARY:Symmetric mass generation as a multicritical point with enhanced s
 ymmetry
DTSTART:20260903T090000Z
DTEND:20260903T100000Z
DTSTAMP:20260917T103400Z
UID:indico-event-9422@scitalks.tifr.res.in
DESCRIPTION:Speakers: Debasish Banerjee (University of Southampton)\n\nWe 
 explore the phase diagram of a lattice fermion model that shows two distin
 ct mechanisms of mass generation from a massless phase. The first is the s
 tandard spontaneous symmetry breaking (SSB) paradigm induced by a fermion 
 bilinear condensate\; and the other is the mechanism of symmetric mass gen
 eration (SMG). Using the fermion-bag Monte Carlo method on large cubical l
 attices\, we find evidence for traditional second-order critical points se
 parating the first two and the latter two phases. Remarkably\, these criti
 cal points appear to merge at a multicritical point with enhanced symmetry
  when the symmetry-breaking parameter is tuned to zero\, giving rise to th
 e recently discovered direct second-order transition between the massless 
 and symmetric massive fermion phases.\n\nhttps://scitalks.tifr.res.in/even
 t/9422/
LOCATION:A304 and on Zoom
URL:https://scitalks.tifr.res.in/event/9422/
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