Is the NANOGrav signal a hint of dS decay during inflation?
The NANOGrav collaboration recently has reported evidence for a stochastic common-spectrum process in its 12.5 yr dataset. We show that such a signal might be a hint of de Sitter (dS) decay during inflation. As suggested by the swampland conjectures, dS space is highly unstable if it exists at all....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321001519 |