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Past Events
Reinterpreting CDM as a Cold Condensate: Comparison of Dark Wave Structures in the First 3D simulations with Cosmological Data
| Speaker: | Prof. Tom Broadhurst |
| Affiliation: | University of the Basque Country |
| Date: | February 21, 2014 (Fri) |
| Time: | 3:30 p.m. |
| Venue: | Room 522, 5/F, Chong Yuet Ming Physics Building, HKU |
Abstract
We have now completed the first high resolution 3D simulations of cosmic structure as the quantum interference of a Bose-Einstein condensate. This natural physical interpretation of cold, bosonic material is motivated generically by scalar field extensions of the Standard Model such as the Axion. Our simulations reveal solitonic waves are predicted within galaxy halos which match well the puzzlingly large cores of dwarf spheroidal galaxies. Simulated galaxy halos also develop a granular texture due to quantum pressure, and may account for the unexplained flux anomalies between multiply lensed QSO's. We make new predictions that spheroid formation is enhanced in this context and that galaxy halos are 'cancelled' during cluster infall. This new quantum wavelike interpretation of CDM suddenly seems the most viable given now that the standard WIMP particle interpretation of dark matter is excluded by the LUX direct detection experiment and the lack of Super-Symmetric signatures from the LHC.
Coffee and tea will be served 20 minutes prior to the seminar.