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The heat kernel expansion for the electromagnetic field in a cavity

F. Bernasconi·G. M. Graf·D. Hasler
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Abstract

We derive the first six coefficients of the heat kernel expansion for the electromagnetic field in a cavity by relating it to the expansion for the Laplace operator acting on forms. As an application we verify that the electromagnetic Casimir energy is finite.

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F. Bernasconi, G. M. Graf, D. Hasler. 2003-02-13. The heat kernel expansion for the electromagnetic field in a cavity. https://doi.org/10.1007/s00023-003-0153-5

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