Oscillon lifetime in the presence of quantum fluctuations
We consider the stability of oscillons in 2+1 space-time dimensions, in the presence of quantum fluctuations. Taking the oscillon to be the inhomogeneous mean field of a self-interacting quantum scalar field, we compare its classical evolution to the evolution in the presence of quantum fluctuations...
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| Format: | Article |
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Springer
2014
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| Online Access: | https://eprints.nottingham.ac.uk/42152/ |
| _version_ | 1848796432875651072 |
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| author | Saffin, Paul M. Tognarelli, Paul Tranberg, Anders |
| author_facet | Saffin, Paul M. Tognarelli, Paul Tranberg, Anders |
| author_sort | Saffin, Paul M. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We consider the stability of oscillons in 2+1 space-time dimensions, in the presence of quantum fluctuations. Taking the oscillon to be the inhomogeneous mean field of a self-interacting quantum scalar field, we compare its classical evolution to the evolution in the presence of quantum fluctuations. The evolution of these and their back reaction onto the mean field is implemented through the inhomogeneous Hartree approximation, in turn computed as a statistical ensemble of field realizations. We find that although the lifetime of the oscillon is dramatically reduced compared to the classical limit, the regions of longevity are similar in the space of Gaussian initial configurations. |
| first_indexed | 2025-11-14T19:47:54Z |
| format | Article |
| id | nottingham-42152 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:47:54Z |
| publishDate | 2014 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-421522020-05-04T16:52:15Z https://eprints.nottingham.ac.uk/42152/ Oscillon lifetime in the presence of quantum fluctuations Saffin, Paul M. Tognarelli, Paul Tranberg, Anders We consider the stability of oscillons in 2+1 space-time dimensions, in the presence of quantum fluctuations. Taking the oscillon to be the inhomogeneous mean field of a self-interacting quantum scalar field, we compare its classical evolution to the evolution in the presence of quantum fluctuations. The evolution of these and their back reaction onto the mean field is implemented through the inhomogeneous Hartree approximation, in turn computed as a statistical ensemble of field realizations. We find that although the lifetime of the oscillon is dramatically reduced compared to the classical limit, the regions of longevity are similar in the space of Gaussian initial configurations. Springer 2014-08-21 Article PeerReviewed Saffin, Paul M., Tognarelli, Paul and Tranberg, Anders (2014) Oscillon lifetime in the presence of quantum fluctuations. Journal of High Energy Physics, 2014 (8). 125/1-125/13. ISSN 1029-8479 Solitons Monopoles and Instantons Nonperturbative Effects Lattice Quantum Field Theory Field Theories in Lower Dimensions http://link.springer.com/article/10.1007%2FJHEP08%282014%29125 doi:10.1007/JHEP08(2014)125 doi:10.1007/JHEP08(2014)125 |
| spellingShingle | Solitons Monopoles and Instantons Nonperturbative Effects Lattice Quantum Field Theory Field Theories in Lower Dimensions Saffin, Paul M. Tognarelli, Paul Tranberg, Anders Oscillon lifetime in the presence of quantum fluctuations |
| title | Oscillon lifetime in the presence of quantum fluctuations |
| title_full | Oscillon lifetime in the presence of quantum fluctuations |
| title_fullStr | Oscillon lifetime in the presence of quantum fluctuations |
| title_full_unstemmed | Oscillon lifetime in the presence of quantum fluctuations |
| title_short | Oscillon lifetime in the presence of quantum fluctuations |
| title_sort | oscillon lifetime in the presence of quantum fluctuations |
| topic | Solitons Monopoles and Instantons Nonperturbative Effects Lattice Quantum Field Theory Field Theories in Lower Dimensions |
| url | https://eprints.nottingham.ac.uk/42152/ https://eprints.nottingham.ac.uk/42152/ https://eprints.nottingham.ac.uk/42152/ |