The moving mirror's radiation can be understood as squeezed Rindler/Milne (Hawking/partner) modes, and the squeezing explains why the spectrum deviates from and yet approximates a thermal distribution while adding correlations.
Particle Production by a Relativistic Semi-Transparent Mirror in 1+3D Minkowski Spacetime
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abstract
Production of scalar particles by a relativistic, semi-transparent mirror in 1+3D Minkowski spacetime based on the Barton-Calogeracos (BC) action is investigated. The corresponding Bogoliubov coefficients are derived for a mirror with arbitrary trajectory. In particular, we apply our derived formula to the gravitational collapse trajectory. In addition, we identify the relation between the particle spectrum and the particle production probability, and we demonstrate the equivalence between our approach and the existing approach in the literature, which is restricted to 1+1D. In short, our treatment extends the study to 1+3D spacetime. Lastly, we offer a third approach for finding the particle spectrum using the S-matrix formalism.
fields
gr-qc 1years
2026 1verdicts
CONDITIONAL 1representative citing papers
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Squeezed quantum states and partner modes in the moving mirror model of black hole evaporation
The moving mirror's radiation can be understood as squeezed Rindler/Milne (Hawking/partner) modes, and the squeezing explains why the spectrum deviates from and yet approximates a thermal distribution while adding correlations.