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SUMMARY:Topical Seminar: Waving in the Dark with Warmth and Noise
DTSTART;VALUE=DATE-TIME:20260529T100000Z
DTEND;VALUE=DATE-TIME:20260529T113000Z
DTSTAMP;VALUE=DATE-TIME:20260522T185653Z
UID:indico-event-8632@indico.ific.uv.es
DESCRIPTION:Causality considerations imply that cosmological fields produc
 ed in the early universe can naturally be both warm and noisy\, possessing
  significant gradient and kinetic energy on small scales. I will discuss h
 ow these small-scale fluctuations manifest themselves in cosmological and 
 astrophysical observables through free-streaming suppression\, scale-depen
 dent enhancement of density fluctuations\, and novel nonlinear phenomena s
 uch as copious soliton formation. These effects can in turn be used to pla
 ce bounds on the microscopic properties and production mechanisms of other
 wise dark fields. Depending on audience interest\, I will also sketch a br
 oadly applicable framework based on field correlators\, together with comp
 arisons to fully nonlinear 3+1 dimensional numerical simulations.\n\nhttps
 ://indico.ific.uv.es/event/8632/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8632/
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