Dear All,
Stephen Feeney - Wednesday 23/3/11 4.30pm - Maths 103 QMUL
With a change to the previously listed speaker, this Wednesday's QMUL
Relativity and Cosmology Seminar will be given by Stephen Feeney of
University College London who will be talking about "First
observational tests of eternal inflation". The abstract is below.
The seminar will take place at the usual time of 4.30pm and we plan on
bringing the speaker for a drink and dinner as usual afterwards.
This will be the last seminar of the current semester and the date of
the next seminar will be advertised closer to the time.
For directions to the building and a list of upcoming
seminars please go to our wiki site at http://cosrel.maths.qmul.ac.uk .
The School of Mathematical Sciences is undertaking a major
refurbishment programme that will radically change the design to our
building both externally and internally. During the reconstruction, we
regret that access to the building will be limited. If this could
impact upon your intention to attend a seminar, please contact Bill
White on 0207 882 5514 or email to [log in to unmask] to discuss your
particular requirements.
Best wishes,
Ian
---------------------------------------------
Dr Ian Huston
Postdoctoral Researcher
Cosmology and Relativity Group
Astronomy Unit, School of Mathematical Sciences
Queen Mary, University of London
[log in to unmask]
http://www.maths.qmul.ac.uk/~ith
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First observational tests of eternal inflation
Stephen Feeney
The eternal inflation scenario predicts that our observable universe
resides inside a single bubble embedded in a vast inflating
multiverse. We present the first observational tests of eternal
inflation, performing a search for cosmological signatures of
collisions with other bubbles universes in cosmic microwave background
data from the WMAP satellite. Using a modular algorithm that is
designed to avoid a posteriori selection effects, we find four
features on the CMB sky that are consistent with being bubble
collisions. If this evidence is corroborated by upcoming data from the
Planck satellite, we will be able to gain insight into the possible
existence of the multiverse.
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