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SUMMARY:Coherent and incoherent dynamics of Fuzzy Dark Matter - Gerasim
 os Rigopoulos (Newcastle University)
DTSTART:20241209T130000Z
DTEND:20241209T140000Z
UID:TALK219391@talks.cam.ac.uk
CONTACT:Thomas Colas
DESCRIPTION:Fuzzy Dark Matter (FDM) has been attracting increasing attenti
 on over the last decade as a popular dark matter model\, alternative to Co
 ld Dark Matter. After briefly reviewing the cosmological motivations for i
 ntroducing such a model to describe dark matter\, I will describe our rece
 nt work on the relation of the halos formed in FDM to the Bose-Einstein co
 ndensates at non-zero temperature studied in cold atom systems and the eff
 ects of a non-zero self-coupling on the characteristic solitons formed at 
 the halos’ centres as well as the surrounding halo. I will then present 
 a new general theory of a mixture of condensed and non-condensed bosonic d
 ark matter and its implications for structure formation. Finally\, I will 
 discuss the determination of the boson's mass and self-coupling from the r
 otation curves of a sample of dark mater dominated galaxies from the Sparc
  database. The studied galaxies imply that a non-zero\, repulsive\, quarti
 c self-interaction is required.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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