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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Marina Cortes


PIRSA:16060110  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The origin of arrows of time II cont.
Abstract:
Date: 27/06/2016 - 4:30 pm
Collection: Time in Cosmology

PIRSA:16060109  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The origin of arrows of time II
Abstract:
Date: 27/06/2016 - 2:00 pm
Collection: Time in Cosmology

PIRSA:16060107  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Welcome and Opening Remarks
Abstract:
Date: 27/06/2016 - 10:00 am
Collection: Time in Cosmology

PIRSA:14020139  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Our Lopsided Universe
Speaker(s): Marina Cortes
Abstract: After a short introduction to open inflation and the observed large-scale cosmic microwave anomalies, which have been confirmed by the Planck satellite, I'll argue that the anomalies are naturally explained in the context of a marginally-open, negatively curved universe. I'll look in particular at t... read more
Date: 11/02/2014 - 11:00 am

PIRSA:07120018  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Can We Detect Dynamics in Dark Energy?
Speaker(s): Marina Cortes
Abstract: We highlight the unexpected impact of nucleosynthesis on the detectability of tracking quintessence dynamics at late times, showing that dynamics may be invisible until Stage-IV dark energy experiments (DUNE, JDEM, LSST, SKA). Nucleosynthesis forces |wŒ(0)| <0.2 for the models we consider and strongly limits potential deviations from _LCDM . Surprisingly, the standard CPL parametrisation, w(z) = w0 +waz/(1+z), cannot match the nucleosynthesis bound for minimally coupled tracking scalar fields. Given that such models are arguably the best-motivated alternatives to a cosmological constant these results may significantly impact future cosmological survey design and imply that dark energy may be dynamical even if we do not detect any dynamics in the next decade.
Date: 03/12/2007 - 3:15 pm
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