BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Probing the Topology of the Early Universe using CMB Temperature a
 nd Polarization Anisotropies
DTSTART;VALUE=DATE-TIME:20251120T093000Z
DTEND;VALUE=DATE-TIME:20251120T094500Z
DTSTAMP;VALUE=DATE-TIME:20260420T161306Z
UID:indico-contribution-28874@indico.ific.uv.es
DESCRIPTION:Speakers: Miguel-Angel Sanchis-Lozano (IFIC\, CSIC-UV)\nThe te
 mperature and polarization of the cosmic microwave background (CMB)\, as m
 easured today\, may offer key insights into the topology of the early univ
 erse prior to inflation\, for example\, by discriminating between flat and
  warped geometries. In this paper\, we focus on a Kaluza-Klein model with 
 an extra spatial dimension that compactifies at the Grand Unified Theory (
 GUT) epoch\, subject to mixed Neumann/Dirichlet boundary conditions at fix
 ed points. As a consequence\, a set of infrared cutoffs naturally emerges 
 in both the scalar and tensor spectra\, leading to observable consequences
  in the CMB. We examine in detail the possible signatures of such a topolo
 gy\, particularly in relation to the even-odd parity imbalance already rep
 orted by the COBE\, WMAP and Planck missions in the temperature angular co
 rrelations at large scales. Furthermore\, we extend our analysis to the ex
 isting Planck E-mode polarization data\, and to the high-precision B-mode 
 polarization measurements expected from the forthcoming LiteBIRD mission.\
 n\nhttps://indico.ific.uv.es/event/8035/contributions/28874/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/28874/
END:VEVENT
END:VCALENDAR