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PreprintarXiv licencearXiv

Differential Equations for Dressed "in-in" Correlators

  • Ivo Sachs
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Abstract

We extend the formalism of differential equations and Integration-by-Parts identities, to cosmological in-in correlators of conformally coupled scalar fields, that can be formulated as dressed flat space amplitudes. These differential equations turn out to be quite powerful for extracting information about the class of functions which the corresponding amplitudes integrate to. Furthermore, they can be formulated algorithmically. Here we illustrate this for the cosmological bubble- triangle and exchange diagram.

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Cite

BibTeXRIS
BibTeX
@misc{sachs2026differential,
  title = {{Differential Equations for Dressed "in-in" Correlators}},
  author = {Ivo Sachs},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.37856},
  eprint = {2610.37856},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.37856},
}
RIS
TY  - UNPB
TI  - Differential Equations for Dressed "in-in" Correlators
AU  - Ivo Sachs
PY  - 2026
DA  - 2026/10/27
PB  - arXiv
DO  - 10.48550/arxiv.2610.37856
UR  - https://arxiv.org/abs/2610.37856
AB  - We extend the formalism of differential equations and Integration-by-Parts identities, to cosmological in-in correlators of conformally coupled scalar fields, that can be formulated as dressed flat space amplitudes. These differential equations turn out to be quite powerful for extracting information about the class of functions which the corresponding amplitudes integrate to. Furthermore, they can be formulated algorithmically. Here we illustrate this for the cosmological bubble- triangle and exchange diagram.
ER  -