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Excitations in Hot Non-Commutative Theories
We study the dispersion relation for scalar excitations in supersymmetric, non-commutative theories at finite temperature. In N=4 Yang-Mills the low momenta modes have superluminous group velocity. In the massless Wess-Zumino model the minimum of the dispersion relation is at non zero momentum for t...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2000
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2000/09/027 http://cds.cern.ch/record/445162 |
Sumario: | We study the dispersion relation for scalar excitations in supersymmetric, non-commutative theories at finite temperature. In N=4 Yang-Mills the low momenta modes have superluminous group velocity. In the massless Wess-Zumino model the minimum of the dispersion relation is at non zero momentum for temperatures above T_0 ~ (g \theta)^(-1\2). We briefly comment on N=2 Yang-Mills at finite density. |
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