The spatial gauge-dependence of single-field inflationary bispectra
In single-field inflationary models the bispectra are usually given in the ζ-gauge, because its temporal part leads to the super-horizon conservation of fluctuations. However, this property is independent of the choice of spatial gauge, so in this letter we explore this freedom. We compute the varia...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269322001526 |