Oscillon lifetime in the presence of quantum fluctuations

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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

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Official URL: http://link.springer.com/article/10.1007%2FJHEP08%282014%29125

Abstract

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.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/733993
Keywords:	Solitons Monopoles and Instantons, Nonperturbative Effects, Lattice Quantum Field Theory, Field Theories in Lower Dimensions
Schools/Departments:	University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number:	https://doi.org/10.1007/JHEP08(2014)125
Depositing User:	Saffin, Dr Paul
Date Deposited:	24 Apr 2017 13:23
Last Modified:	04 May 2020 16:52
URI:	https://eprints.nottingham.ac.uk/id/eprint/42152

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