Abstract
The influence of the gravity acceleration on the regularized energy–momentum tensor of the quantized electromagnetic field between two plane parallel conducting plates is derived. A perturbative expansion, to first order in the constant acceleration parameter, of the Green functions involved and of the energy–momentum tensor is derived by means of the covariant geodesic point-splitting procedure. The energy–momentum tensor is covariantly conserved and satisfies the expected relation between gauge-breaking and ghost parts. Interestingly, a non-vanishing trace anomaly is obtained to first order in the constant acceleration.
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