On space-time noncommutative U(1) model at high temperature
نویسنده
چکیده
We extend the results of Ref. [1] to noncommutative gauge theories at finite temperature. In particular, by making use of the background field method, we analyze renormalization issues and the high-temperature asymptotics of the one-loop Euclidean free energy of the noncommutative U(1) gauge model within imaginary time formalism. As a by-product, the heat trace of the non-minimal photon kinetic operator on noncommutative S×R manifold taken in an arbitrary background gauge is investigated. All possible types of noncommutativity on S×R are considered. It is demonstrated that the non-planar sector of the model does not contribute to the free energy of the system at high temperature. The obtained results are discussed. PACS numbers: 11.15.-q, 11.10.Wx, 11.10.Nx, 11.15.Kc
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