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SUMMARY:Uncool soft-wall phase transitions and gravitational waves
DTSTART:20260424T170000Z
DTEND:20260424T190000Z
DTSTAMP:20260521T064300Z
UID:indico-event-17801@indico.global
DESCRIPTION:Speakers: Ameen Ismail\n\nTheories with warped extra dimension
 s\, like the Randall-Sundrum (RS) model\, exhibit a holographic phase tran
 sition from a hot\, deconfined black brane phase to a cool\, confined phas
 e. The standard picture of a first-order\, strongly supercooled phase tran
 sition is expected to change in variations where the extra dimension is sm
 oothly cut off by a soft-wall curvature singularity\, as opposed to a hard
  brane. To understand this situation\, we consider a simple ansatz for the
  warped geometry which allows us to obtain analytical results while mainta
 ining the essential behavior of a soft wall. Unlike RS with the usual Gold
 berger-Wise stabilization\, the hot\, black brane phase only exists above 
 a minimum temperature\, which is not much smaller than the critical temper
 ature. We explore the dynamics of the phase transition across the range of
  possibilities for the asymptotic geometry of a soft wall. The phase trans
 ition completes rapidly and with only slight supercooling. For a TeV-scale
  transition\, the resulting gravitational wave signal is accessible to fut
 ure space-based interferometers.\n\nhttps://indico.global/event/17801/
URL:https://indico.global/event/17801/
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