Excitations in hot non-commutative theories

Authors
Landsteiner, K Lopez, E Tytgat, MHG
Citation
K. Landsteiner et al., Excitations in hot non-commutative theories, J HIGH EN P, 2000(9), 2000, pp. NIL_493-NIL_508
Citations number
36
Categorie Soggetti
Physics
Journal title
JOURNAL OF HIGH ENERGY PHYSICS
ISSN journal
10298479 → ACNP
Volume
2000
Issue
9
Year of publication
2000
Pages
NIL_493 - NIL_508
Database
ISI
SICI code
1029-8479(200009)2000:9<NIL_493:EIHNT>2.0.ZU;2-P
Abstract
We study the dispersion relation for scalar excitations in supersymmetric, non-commutative theories at finite temperature. In N = 4 Yang-Mills the low momentum modes have superluminous group velocity. In the massless Wess-Zum ino model the minimum of the dispersion relation is at non zero momentum fo r temperatures above T-0 approximate to (g theta) (-1/2). We briefly commen t on N = 2 Yang-Mills at finite density.