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Article
Report number hep-th/0104133 ; CERN-TH-2001-106 ; ULB-TH-01-09 ; CERN-TH-2001-106 ; ULB-TH-2001-09
Title Instability of Non-Commutative SYM Theories at Finite Temperature
Related titleSupersymmetric Yang-Mills
Author(s) Landsteiner, Karl (CERN) ; Lopez, Esperanza (CERN) ; Tytgat, Michel H.G. (Brussels U.)
Affiliation (CERN) ; (Bruxelles Univ.)
Publication 2001
Imprint 16 Apr 2001
Number of pages 22
In: JHEP 06 (2001) 055
DOI 10.1088/1126-6708/2001/06/055
Subject category Particle Physics - Theory
Abstract We extend our previous work on the quasi-particle excitations in N=4 non-commutative U(1) Yang-Mills theory at finite temperature. We show that above some critical temperature there is a tachyon in the spectrum of excitations. It is a collective transverse photon mode polarized in the non-commutative plane. Thus the theory seems to undergo a phase transition at high temperature. Furthermore we find that the group velocity of quasi-particles generically exceeds the speed of light at low momentum.

Corresponding record in: Inspire
Email contact: landstei@mail.cern.ch


 Záznam vytvorený 2001-04-17, zmenený 2023-03-14


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