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Peer-reviewedCC BY 4.0Journal of High Energy Physics

Gravitational open effective field theory of inflation

  • Perseas Christodoulidis1
  • Jinn-Ouk Gong1,2
  1. 1Ewha Womans University
  2. 2Asia Pacific Center for Theoretical Physics
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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 a minimal open operator compatible with propagating scalar and tensor modes and build a local gravitational action, recovering known dissipative models of inflation.

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Cite

BibTeXRIS
BibTeX
@article{christodoulidis2026gravitational,
  title = {{Gravitational open effective field theory of inflation}},
  author = {Perseas Christodoulidis and Jinn-Ouk Gong},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = nov,
  doi = {10.1007/jhep11(2026)024},
  url = {https://link.springer.com/article/10.1007/JHEP11(2026)024},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Gravitational open effective field theory of inflation
AU  - Perseas Christodoulidis
AU  - Jinn-Ouk Gong
PY  - 2026
DA  - 2026/11/04
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep11(2026)024
UR  - https://link.springer.com/article/10.1007/JHEP11(2026)024
AB  - 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 a minimal open operator compatible with propagating scalar and tensor modes and build a local gravitational action, recovering known dissipative models of inflation.
SN  - 1029-8479
ER  -