Quantum radiation from round-trip flying mirrors
Mujtaba A. Ievlev E. Gorban M.J. Good M.R.R.
15 March 2025American Physical Society
Physical Review D
2025#111Issue 6
Erasing a black hole leaves spacetime flat, so light passing through the region before any star forms and after the black holes evaporation shows no time delay, just like a flying mirror that returns to its initial starting point. Quantum radiation from a round-trip flying mirror has not been solved despite the models mathematical simplicity and physical clarity. Here, we solve the particle creation from worldlines that asymptotically start and stop at the same spot, resulting in interesting spectra and symmetries, including the time dependence of thermal radiance associated with Bose-Einstein and Fermi-Dirac Bogoliubov coefficients. Fourier analysis, intrinsically linked to the Bogoliubov mechanism, shows that a thermal Bogoliubov distribution does not describe the spin-statistics of the quantum field.
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Physics Department and Energetic Cosmos Laboratory, Nazarbayev University, Astana, 010000, Kazakhstan
William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, 55455, MN, United States
Department of Physics, Baylor University, Waco, 76798, TX, United States
Center for Astrophysics, Space Physics and Engineering Research, Baylor University, Waco, 76798, TX, United States
Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, 10617, Taiwan
Physics Department and Energetic Cosmos Laboratory
William I. Fine Theoretical Physics Institute
Department of Physics
Center for Astrophysics
Leung Center for Cosmology and Particle Astrophysics
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