University of Cambridge > Talks.cam > Cavendish Astrophysics Seminars > What have we learnt about inflation from WMAP?

What have we learnt about inflation from WMAP?

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Jane Buckle.

Precision observations of the cosmic microwave background have supposedly shown that the spectrum of primordial density fluctuations is a scale-free power-law, as well as confirmed the indication from the SNIa Hubble diagram that the universe is dominated by “dark energy”. Looked at more closely the WMAP data suggests that there are features in the spectrum, and physical models of inflation based on supergravity provide a plausible mechanism for generating these through phase transitions as the universe supercools in a false vacuum. This has a major impact on cosmological parameter extraction – the data can then be fitted with no need for dark energy but with eV mass neutrinos in addition to cold dark matter.

This talk is part of the Cavendish Astrophysics Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2019 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity