Simon Fraser University
SFU Cosmology Seminars

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Thursday, 1 February 2007, 13:00 in P8445B

Dr. Adam Moss (UBC)

Dark energy and the rubber band

There is now strong evidence for an unknown form of dark energy pervading the universe. However, the microphysical explanation of this dark energy remains a mystery. The dark energy cannot be a normal fluid, as this leads to instabilities on the smallest scales. In this talk I discuss the possibility that the dark energy takes the form of an elastic medium. I explain the theoretical framework and cosmological signatures of such a model, and also discuss the possibility that the microphysical origin is a tangled network of cosmic strings and domain walls.

Seminars in 2006:

2006-10-04 12:45 in P8445A - Serge Winitzki (Ludwig Maximilians University, Munich): Predictions in eternally inflating universe
2006-11-22 12:45 in P8445B - Ingrid Stairs (UBC): Relativistic binary pulsars
2006-11-23 14:00 in P8445B - Veselin Filev (University of Southern California): Adding flavors in AdS/CFT correspondence
2006-11-30 14:00 in P8445B - Marco Peloso (University of Minnesota): The role of SUSY flat directions in reheating
2006-12-05 13:00 in P8445B - Jasper Wall (UBC): Submillimetre galaxies and star-formation in the early Universe
2007-01-11 13:00 in P8445B - Krzysztof Sliwa (Tufts University): Supersymmetry for particle physicists
2007-01-16 14:00 in SSB7109 - Bojan Losic (University of Alberta): Aspects of nonlinear perturbation theory in cosmology
2007-02-01 13:00 in P8445B - Adam Moss (UBC): Dark energy and the rubber band
2007-03-08 13:00 in P8445B - Catherine Heymans (UBC): Probing dark matter and dark energy with weak gravitational lensing
2007-03-22 13:00 in P8445B - Ira Wasserman (Cornell): The neutron star in 1930 -- and today (special colloquium)
2007-03-23 12:30 in P8445B - Ira Wasserman (Cornell): Dynamics of the r mode instability of neutron stars
2007-03-27 14:00 in SSB7109 - Shinji Mukohyama (University of Tokyo): Cosmology with warped flux compactification
2007-04-03 14:00 in SSB7109 - Christian Armendariz-Picon (Syracuse): Do quantum excitations of the inflaton decay?
2007-04-12 13:00 in P8445B - David Rapetti (KIPAC/Stanford): X-ray galaxy clusters as cosmological probes
2007-04-19 13:00 in P8445B - Eric Peng (HIA/DAO, Victoria): Globular cluster systems and the early evolution of galaxies
2007-04-24 14:00 in P8445B - Evgeny Sorkin (UBC): The pinching black strings
2007-05-03 13:00 in P8445B - Tanmay Vachaspati (Case Western Reserve University): Formation of black holes

[ See complete seminar archives | iCal feed ]

Modified by Andrei Frolov <frolov@sfu.ca> on 2023-11-01