Stress-energy tensor of quantized massive scalar fields in thermal states on zero-tidal wormholes satisfies Morris-Thorne conditions only for bounded masses and temperatures below a mass-dependent critical value.
Renormalized stress-energy tensor for stationary black holes
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abstract
We continue the presentation of the pragmatic mode-sum regularization (PMR) method for computing the renormalized stress-energy tensor (RSET). We show in detail how to employ the $t$-splitting variant of the method, which was first presented for $\left\langle\phi^{2}\right\rangle_{ren}$, to compute the RSET in a stationary, asymptotically-flat background. This variant of the PMR method was recently used to compute the RSET for an evaporating spinning black hole. As an example for regularization, we demonstrate here the computation of the RSET for a minimally-coupled, massless scalar field on Schwarzschild background in all three vacuum states. We discuss future work and possible improvements of the regularization schemes in the PMR method.
fields
gr-qc 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Stress-energy tensor of quantized scalar fields in thermal states on a zero-tidal wormhole
Stress-energy tensor of quantized massive scalar fields in thermal states on zero-tidal wormholes satisfies Morris-Thorne conditions only for bounded masses and temperatures below a mass-dependent critical value.