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Conference Paper/Proceeding/Abstract 1114 views

The Classical approximation for real time scalar field theory at finite temperature

Aarts, Gert, Gert Aarts Orcid Logo

Swansea University Author: Gert Aarts Orcid Logo

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...

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Published: 1998
Online Access: http://inspirehep.net/record/476168
URI: https://cronfa.swan.ac.uk/Record/cronfa22624
first_indexed 2015-07-21T11:25:51Z
last_indexed 2018-02-09T05:00:59Z
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recordtype SURis
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spelling 2016-04-13T11:30:57.8424786 v2 22624 2015-07-21 The Classical approximation for real time scalar field theory at finite temperature 1ba0dad382dfe18348ec32fc65f3f3de 0000-0002-6038-3782 Gert Aarts Gert Aarts true false 2015-07-21 BGPS 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. Conference Paper/Proceeding/Abstract 30 9 1998 1998-09-30 http://inspirehep.net/record/476168 @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 NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2016-04-13T11:30:57.8424786 2015-07-21T10:15:16.6860968 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Aarts, Gert 1 Gert Aarts 0000-0002-6038-3782 2
title The Classical approximation for real time scalar field theory at finite temperature
spellingShingle The Classical approximation for real time scalar field theory at finite temperature
Gert Aarts
title_short The Classical approximation for real time scalar field theory at finite temperature
title_full The Classical approximation for real time scalar field theory at finite temperature
title_fullStr The Classical approximation for real time scalar field theory at finite temperature
title_full_unstemmed The Classical approximation for real time scalar field theory at finite temperature
title_sort The Classical approximation for real time scalar field theory at finite temperature
author_id_str_mv 1ba0dad382dfe18348ec32fc65f3f3de
author_id_fullname_str_mv 1ba0dad382dfe18348ec32fc65f3f3de_***_Gert Aarts
author Gert Aarts
author2 Aarts, Gert
Gert Aarts
format Conference Paper/Proceeding/Abstract
publishDate 1998
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
url http://inspirehep.net/record/476168
document_store_str 0
active_str 0
description 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.
published_date 1998-09-30T00:51:41Z
_version_ 1821364665163186176
score 11.04748

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