Gravitational open effective field theory of inflation
High Energy Physics - Theory
2025-12-25 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We construct a gravitational open extension of the effective field theory of inflation in the Schwinger-Keldysh framework. While physical symmetries allow many open operators in the Schwinger-Keldysh action, most of them overconstrain the equations of motion, yielding inconsistent dynamics. We identify the minimal open operators compatible with propagating scalar and tensor modes and build the gravitational action, recovering dissipative models of inflation.
Keywords
Cite
@article{arxiv.2512.21234,
title = {Gravitational open effective field theory of inflation},
author = {Perseas Christodoulidis and Jinn-Ouk Gong},
journal= {arXiv preprint arXiv:2512.21234},
year = {2025}
}
Comments
19 pages, 2 appendices