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We analyzed horizon "edge" degrees of freedom for gravity and higher-spin fields in de Sitter and Nariai spacetimes. Novel symmetry breaking in one-loop thermodynamics was revealed, with graviton modes interpreted as cosmic horizon fluctuations.

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Area of Science:

  • Theoretical physics
  • Quantum gravity
  • Cosmology

Background:

  • Previous analyses explored one-loop thermodynamics using Lorentzian and Euclidean methods.
  • Understanding horizon thermodynamics is crucial for quantum gravity.

Purpose of the Study:

  • To obtain spectra of codimension-2 horizon
  • edge
  • degrees of freedom for gravity and higher-spin fields.
  • To investigate one-loop thermodynamics in de Sitter and Nariai spacetimes.
  • To reveal novel symmetry-breaking structures.

Main Methods:

  • Spectral analysis of horizon degrees of freedom.
  • One-loop thermodynamic calculations.
  • Investigation in de Sitter and Nariai spacetime backgrounds.

Main Results:

  • The edge spectra exhibit universal shift symmetries.
  • A novel symmetry-breaking structure was found in one-loop partition functions with a positive cosmological constant.
  • Graviton modes were geometrically interpreted as cosmic horizon fluctuations, a finding consistent in both spacetimes.

Conclusions:

  • The study advances the understanding of one-loop thermodynamics in curved spacetimes.
  • The identified symmetry-breaking structure offers new insights into quantum gravity effects.
  • The geometric interpretation of graviton modes provides a deeper connection between gravity and horizon physics.