Finite-temperature φ 4 theory from the 2PI effective action: Two-loop truncation

A. Arrizabalaga; U. Reinosa

doi:10.1140/epja/i2007-10008-4

Finite-temperature φ ⁴ theory from the 2PI effective action: Two-loop truncation

A. Arrizabalaga
, U. Reinosa

Science Park 105
Heidelberg University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Using resummation techniques based on the 2PI effective action we study the scalar φ ⁴ theory at finite temperature. We present an analytical as well as numerical study for a renormalized two-loop truncation of the action. Both the spectral properties and critical behaviour of the theory are investigated. Within the truncation, we explicitly check that the physical observables are UV-finite.

Original language	English
Pages (from-to)	754-757
Number of pages	4
Journal	European Physical Journal A
Volume	31
Issue number	4
DOIs	https://doi.org/10.1140/epja/i2007-10008-4
Publication status	Published - 1 Mar 2007
Externally published	Yes

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title = "Finite-temperature φ 4 theory from the 2PI effective action: Two-loop truncation",

abstract = "Using resummation techniques based on the 2PI effective action we study the scalar φ 4 theory at finite temperature. We present an analytical as well as numerical study for a renormalized two-loop truncation of the action. Both the spectral properties and critical behaviour of the theory are investigated. Within the truncation, we explicitly check that the physical observables are UV-finite.",

author = "A. Arrizabalaga and U. Reinosa",

year = "2007",

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doi = "10.1140/epja/i2007-10008-4",

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T1 - Finite-temperature φ 4 theory from the 2PI effective action

T2 - Two-loop truncation

AU - Arrizabalaga, A.

AU - Reinosa, U.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - Using resummation techniques based on the 2PI effective action we study the scalar φ 4 theory at finite temperature. We present an analytical as well as numerical study for a renormalized two-loop truncation of the action. Both the spectral properties and critical behaviour of the theory are investigated. Within the truncation, we explicitly check that the physical observables are UV-finite.

AB - Using resummation techniques based on the 2PI effective action we study the scalar φ 4 theory at finite temperature. We present an analytical as well as numerical study for a renormalized two-loop truncation of the action. Both the spectral properties and critical behaviour of the theory are investigated. Within the truncation, we explicitly check that the physical observables are UV-finite.

U2 - 10.1140/epja/i2007-10008-4

DO - 10.1140/epja/i2007-10008-4

M3 - Article

AN - SCOPUS:34147138814

SN - 1434-6001

VL - 31

SP - 754

EP - 757

JO - European Physical Journal A

JF - European Physical Journal A

IS - 4

ER -

Finite-temperature φ 4 theory from the 2PI effective action: Two-loop truncation

Abstract

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Finite-temperature φ ⁴ theory from the 2PI effective action: Two-loop truncation