HEAT-KERNEL EXPANSION AT FINITE TEMPERATURE

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Data

1992-01-15

Autores

Boschifilho, H.
Natividade, C. P.
Farina, C.

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Editor

American Physical Soc

Resumo

We show how the zero-temperature result for the heat-kernel asymptotic expansion can be generalized to the finite-temperature one. We observe that this general result depends on the interesting ratio square-root tau/beta, where tau is the regularization parameter and beta = 1/T, so that the zero-temperature limit beta --> infinity corresponds to the cutoff limit tau --> 0. As an example, we discuss some aspects of the axial model at finite temperature.

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Physical Review D. College Pk: American Physical Soc, v. 45, n. 2, p. 586-594, 1992.