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SUMMARY:Gravitational waves from phase transitions in the early universe -
  Mark Hindmarsh (Sussex)
DTSTART:20141020T120000Z
DTEND:20141020T130000Z
UID:TALK55366@talks.cam.ac.uk
CONTACT:33215
DESCRIPTION:I review cosmological sources of gravitational waves and prosp
 ects for detection\, and present recent work on large-scale numerical simu
 lations of gravitational wave production at a first order phase transition
 .  The simulations show that the principal source of gravitational waves i
 s the sound made by bubbles of the new phase as they expand and collide.  
 The amplitude of the gravitational waves from sound of the transition is g
 enerically orders of magnitude larger than previous estimates\, which coul
 d have significant implications for their detectability at eLISA.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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