A Brief Overview of Hard-Thermal-Loop Perturbation Theory

Su N (2012)
Communications in Theoretical Physics 57(3): 409-421.

Download
Es wurde kein Volltext hochgeladen. Nur Publikationsnachweis!
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
The poor convergence of quantum field theory at finite temperature has been one of the main obstacles in the practical applications of thermal QCD for decades. Here we briefly review the progress of hard-thermal-loop perturbation theory (HTLpt) in reorganizing the perturbative expansion in order to improve the convergence. The quantum mechanical anharmonic oscillator is used as a simple example to show the breakdown of weak-coupling expansion, and variational perturbation theory is introduced as an effective resummation scheme for divergent weak-coupling expansions. We discuss HTLpt thermodynamic calculations for QED, pure-glue QCD, and QCD with N-f = 3 up to three-loop order. The results suggest that HTLpt provides a systematic framework that can be used to calculate both static and dynamic quantities for temperatures relevant at LHC.
Erscheinungsjahr
Zeitschriftentitel
Communications in Theoretical Physics
Band
57
Zeitschriftennummer
3
Seite
409-421
ISSN
PUB-ID

Zitieren

Su N. A Brief Overview of Hard-Thermal-Loop Perturbation Theory. Communications in Theoretical Physics. 2012;57(3):409-421.
Su, N. (2012). A Brief Overview of Hard-Thermal-Loop Perturbation Theory. Communications in Theoretical Physics, 57(3), 409-421. doi:10.1088/0253-6102/57/3/12
Su, N. (2012). A Brief Overview of Hard-Thermal-Loop Perturbation Theory. Communications in Theoretical Physics 57, 409-421.
Su, N., 2012. A Brief Overview of Hard-Thermal-Loop Perturbation Theory. Communications in Theoretical Physics, 57(3), p 409-421.
N. Su, “A Brief Overview of Hard-Thermal-Loop Perturbation Theory”, Communications in Theoretical Physics, vol. 57, 2012, pp. 409-421.
Su, N.: A Brief Overview of Hard-Thermal-Loop Perturbation Theory. Communications in Theoretical Physics. 57, 409-421 (2012).
Su, Nan. “A Brief Overview of Hard-Thermal-Loop Perturbation Theory”. Communications in Theoretical Physics 57.3 (2012): 409-421.

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

arXiv: 1204.0260

Inspire: 1097062

Suchen in

Google Scholar