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Peer-reviewedCC BY 4.0SciPost

Irreversibility of quantum field theory in de Sitter: The C, F and A theorems

  • Nicolás Abate1,2,3,4
  • Gonzalo Torroba1,2,3,4
4 affiliations
  1. 1Balseiro Institute
  2. 2Bariloche Atomic Centre
  3. 3Comisión Nacional de Energía Atómica
  4. 4National Scientific and Technical Research Council
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Abstract

We prove the C C , F F and A A irreversibility theorems in de Sitter spacetime for quantum field theories that are obtained as renormalization group flows from ultraviolet conformal fixed points. The proof is based on strong subadditivity of the entanglement entropy, de Sitter invariance, and the Markov property of conformal field theory.

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Cite

BibTeXRIS
BibTeX
@article{abate2026irreversibility,
  title = {{Irreversibility of quantum field theory in de Sitter: The C, F and A theorems}},
  author = {Nicolás Abate and Gonzalo Torroba},
  journal = {SciPost},
  year = {2026},
  month = nov,
  doi = {10.21468/scipostphys.21.5.112},
  url = {http://scipost.org/SciPostPhys.21.5.112},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Irreversibility of quantum field theory in de Sitter: The C, F and A theorems
AU  - Nicolás Abate
AU  - Gonzalo Torroba
PY  - 2026
DA  - 2026/11/03
JO  - SciPost
DO  - 10.21468/scipostphys.21.5.112
UR  - http://scipost.org/SciPostPhys.21.5.112
AB  - We prove the C C , F F and A A irreversibility theorems in de Sitter spacetime for quantum field theories that are obtained as renormalization group flows from ultraviolet conformal fixed points. The proof is based on strong subadditivity of the entanglement entropy, de Sitter invariance, and the Markov property of conformal field theory.
SN  - 2542-4653
ER  -