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arXiv · 1306.0609

Non-Bunch-Davies Anisotropy

Xingang Chen·Yi Wang
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Abstract

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.

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Xingang Chen, Yi Wang. 2013-06-03. Non-Bunch-Davies Anisotropy. https://doi.org/10.1088/1475-7516%2F2014%2F07%2F004

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