There and Back Again: Quantum Radiation from Round-trip Flying Mirrors
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909533321822208 |
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| author | Mujtaba, Ahsan Ievlev, Evgenii Gorban, Matthew J. Good, Michael R. R. |
| author_facet | Mujtaba, Ahsan Ievlev, Evgenii Gorban, Matthew J. Good, Michael R. R. |
| contents | Erasing a black hole leaves spacetime flat, so light passing through the region before any star forms and after black hole's 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 model's 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 Bogolubov coefficients. Fourier analysis, intrinsically linked to the Bogolubov mechanism, shows that a thermal Bogolubov distribution does not describe the spin statistics of the quantum field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_03521 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | There and Back Again: Quantum Radiation from Round-trip Flying Mirrors Mujtaba, Ahsan Ievlev, Evgenii Gorban, Matthew J. Good, Michael R. R. Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory Erasing a black hole leaves spacetime flat, so light passing through the region before any star forms and after black hole's 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 model's 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 Bogolubov coefficients. Fourier analysis, intrinsically linked to the Bogolubov mechanism, shows that a thermal Bogolubov distribution does not describe the spin statistics of the quantum field. |
| title | There and Back Again: Quantum Radiation from Round-trip Flying Mirrors |
| topic | Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2411.03521 |