Fermionic Contributions to the Free Energy of Noncommutative Quantum Electrodynamics at High Temperature

Abstract

We consider the fermionic contributions to the free energy of noncommutative QED at finite temperature $T$. This analysis extends the main results of our previous investigation where we have considered the pure bosonic sector of the theory. For large values of $\theta T^2$ ($\theta$ is the magnitude of the noncommutative parameters) the fermionic contributions decrease the value of the critical temperature, above which there occurs a thermodynamic instability.

arXiv comment6 pages, 3 figures. To be published in Physics Letters B

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• Noncommutative Field Theory
• Quantum Field Theory on Noncommutative Spaces
• Noncommutative Perturbative Dynamics
• Perturbative analysis on infrared aspects of noncommutative QED on R^4
• A non-perturbative study of 4d U(1) non-commutative gauge theory -- the fate of one-loop instability
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Cited by in corpus (4)

• On space-time noncommutative theories at finite temperature
• Nonanalyticity of the free energy in thermal field theory
• Noncommutative real scalar field theory in 2+1 dimensions at finite temperature
• On space-time noncommutative U(1) model at high temperature