Conference Paper/Proceeding/Abstract 1112 views
The Classical approximation for real time scalar field theory at finite temperature
Aarts, Gert,
Gert Aarts 
Swansea University Author:
Gert Aarts
Abstract
The use of classical thermal field to approximate real-time quantum thermal field theory is discussed. For a \lambda\phi^4 theory, it is shown that the classical Rayleigh-Jeans divergence can be canceled with the appropriate counterterms, and a comparison is made between the classical and quantum pe...
| Published: |
1998
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| Online Access: |
http://inspirehep.net/record/476168 |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa22624 |
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| Abstract: |
The use of classical thermal field to approximate real-time quantum thermal field theory is discussed. For a \lambda\phi^4 theory, it is shown that the classical Rayleigh-Jeans divergence can be canceled with the appropriate counterterms, and a comparison is made between the classical and quantum perturbative expansion. It is explained why Hard Thermal Loops prevent the same method to work for gauge theories. |
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| Item Description: |
@articleAarts:1998zt, author = "Aarts, Gert", title = "The Classical approximation for real time scalar field theory at finite temperature", year = "1998", eprint = "hep-ph/9809339", archivePrefix = "arXiv", primaryClass = "hep-ph", SLACcitation = "%%CITATION = HEP-PH/9809339;%%", |
| College: |
Faculty of Science and Engineering |