The cosmological phonon: symmetries and amplitudes on sub-horizon scales
Abstract In contrast to massless spinning particles, scalars are not heavily constrained by unitarity and locality. Off-shell, no gauge symmetries are required to write down manifestly local theories, while on-shell consistent factorisation is trivial. Instead a useful classification scheme for scal...
Main Authors: | Tanguy Grall, Sadra Jazayeri, David Stefanyszyn |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2020-11-01
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Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1007/JHEP11(2020)097 |
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