Towards the physical vacuum of cosmic inflation
There have been long debates about the initial conditions of inflationary perturbations. In this work we explicitly show the decay of excited states during inflation via interactions from the renormalization group point of view. For this purpose, we note that the folded shape non-Gaussianity can be...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026931630329X |