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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-8725
DTSTART:20240508T193000Z
DTEND:20240508T203000Z
DTSTAMP:20260413T184628Z
LAST-MODIFIED:20240501T152503Z
LOCATION:5280 Chamberlin
SUMMARY:The Minimal Weak Gravity Conjecture\, Theory Seminar (High Ene
 rgy/Cosmology)\, Alessandro Mininno\, Deutsches Elektronen-Synchrotron
  DESY
DESCRIPTION:I examine the minimal constraints imposed by the Weak Grav
 ity Conjecture (WGC) on the particle spectrum of a quantum gravity the
 ory. Recently\, we have argued for the existence of a minimal radius f
 or circle reductions of generic quantum gravity theories. Below this t
 hreshold\, the notion of a circle compactification breaks down\, bypas
 sing the need for a tower of super-extremal states to satisfy the WGC 
 after circle reduction. Based on this\, we propose that if a theory sa
 tisfies the WGC at the particle level below the black hole threshold\,
  these states are sufficient for consistency under dimensional reducti
 on\, even in absence of a tower of super-extremal particles. Evidence 
 for this main result is found in F-\, M- and string theory compactific
 ations. The only exception to the appearance of a minimal radius arise
 s in asymptotically weak-coupling limits for heterotic strings\, which
  aligns with the appearance of a weakly coupled super-extremal tower o
 f particle states. This observation motivates a Minimal Weak Gravity C
 onjecture which states that towers of super-extremal particles occur i
 f and only if they are required by consistency of the WGC under dimens
 ional reduction. The talk is based on [2312.04619].
URL:https://www.physics.wisc.edu/events/?id=8725
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