CMB anomalies as probes for the initial condition of inflation

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• Yi Wang (DAMTP / University of Cambridge)
• Friday 15 November 2013, 13:00-14:00
• Pavilion B Potter Room (B1.19).

If you have a question about this talk, please contact Helvi Witek.

We introduce a generic mechanism that can extend the effects of relic anisotropies at the beginning of inflation to relatively much shorter scales in density perturbations. This is induced by non-Bunch-Davies states of the quantum fluctuations, and can show up in the non-oscillatory components of the density perturbations. This mechanism works for general forms of anisotropies, and, to illustrate it, we use an example of relic vector field. The detailed scale-dependence of these anisotropies can be used to probe the initial quantum state of our universe.

This talk is part of the DAMTP Friday GR Seminar series.

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