Through the looking-glass, and what AdS found there: quantum particle production with a Whittaker spectrum
Good M.R.R. Linder E.V.
August 2025Springer Science and Business Media Deutschland GmbH
Journal of High Energy Physics
2025#2025Issue 8
Parity-inverted anti-de Sitter space — “flipped AdS” — is studied through the accelerating boundary correspondence of a moving mirror trajectory. The particle production exhibits positive energy flux and a finite total energy (unlike AdS and de Sitter respectively). The particle spectrum is of Whittaker form, with some similarities to a Planck thermal spectrum. We also derive the corresponding spacetime metric, with similarities to regular de Sitter space, but exhibiting a tower of repeated causal regions with horizons.
Cosmological models , de Sitter space , Field Theories in Lower Dimensions
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Physics Department & Energetic Cosmos Laboratory, Nazarbayev University, Astana, 010000, Kazakhstan
Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, 10617, Taiwan
Beyond Center for Fundamental Concepts in Science, Arizona State University, Tempe, 85287, AZ, United States
Berkeley Center for Cosmological Physics & Berkeley Lab, University of California, Berkeley, 94720, CA, United States
Physics Department & Energetic Cosmos Laboratory
Leung Center for Cosmology and Particle Astrophysics
Beyond Center for Fundamental Concepts in Science
Berkeley Center for Cosmological Physics & Berkeley Lab
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