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| Description | Joint Theory Seminar Speaker:Mark Wise Title: The Galaxy halo bispectrum and primordial non-Gaussianities Host:Markus Luty Room: 432 Abstract: Primordial non-Gaussian density perturbations can give rise to very unusual behavior for the power spectrum and bispectrum of biased objects like galaxies. For example, the galactic power spectrum could go as 1/q^3 as small wave-vectors q. I discuss this effect within the context of quasi-single field inflation making some estimates for how small the wave-vector q has to be for this behavior to dominate over the usual approximately Harrison-Zeldovich form for the power spectrum. |
| Date | Mon, November 13, 2017 |
| Time | 5:30am-6:30am PST |
| Duration | 1 hour |
| Access | Public |
| Created by | High-Energy Seminars |
| Updated | Wed, October 25, 2017 9:24am PDT |
| Send Reminder | Yes - 0 days 4 hour 0 minutes before start |
