Quantum interference in gravitational particle production
Abstract Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles. We argue that these features are due to the quantum interference of the coherent s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2022)108 |
| _version_ | 1827979590684901376 |
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| author | Edward Basso Daniel J. H. Chung Edward W. Kolb Andrew J. Long |
| author_facet | Edward Basso Daniel J. H. Chung Edward W. Kolb Andrew J. Long |
| author_sort | Edward Basso |
| collection | DOAJ |
| description | Abstract Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles. We argue that these features are due to the quantum interference of the coherent scattering reactions that produce the particles. We provide accurate analytic formulae to compute the particle production amplitude for a conformally- coupled scalar field, including the interference effect in the kinematic region where the production can be interpreted as inflaton scattering into scalar final states via graviton exchange. |
| first_indexed | 2024-04-09T21:40:10Z |
| format | Article |
| id | doaj.art-7e44fc9016ad4c65964f61dbbb50e076 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T21:40:10Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-7e44fc9016ad4c65964f61dbbb50e0762023-03-26T11:05:13ZengSpringerOpenJournal of High Energy Physics1029-84792022-12-0120221213310.1007/JHEP12(2022)108Quantum interference in gravitational particle productionEdward Basso0Daniel J. H. Chung1Edward W. Kolb2Andrew J. Long3Department of Physics, The University of Wisconsin-MadisonDepartment of Physics, The University of Wisconsin-MadisonKavli Institute for Cosmological Physics and Enrico Fermi Institute, University of ChicagoDepartment of Physics and Astronomy, Rice UniversityAbstract Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles. We argue that these features are due to the quantum interference of the coherent scattering reactions that produce the particles. We provide accurate analytic formulae to compute the particle production amplitude for a conformally- coupled scalar field, including the interference effect in the kinematic region where the production can be interpreted as inflaton scattering into scalar final states via graviton exchange.https://doi.org/10.1007/JHEP12(2022)108Early Universe Particle PhysicsParticle Nature of Dark Matter |
| spellingShingle | Edward Basso Daniel J. H. Chung Edward W. Kolb Andrew J. Long Quantum interference in gravitational particle production Journal of High Energy Physics Early Universe Particle Physics Particle Nature of Dark Matter |
| title | Quantum interference in gravitational particle production |
| title_full | Quantum interference in gravitational particle production |
| title_fullStr | Quantum interference in gravitational particle production |
| title_full_unstemmed | Quantum interference in gravitational particle production |
| title_short | Quantum interference in gravitational particle production |
| title_sort | quantum interference in gravitational particle production |
| topic | Early Universe Particle Physics Particle Nature of Dark Matter |
| url | https://doi.org/10.1007/JHEP12(2022)108 |
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