Cosmological Constant and Vacuum Zero Point Energy in Black Hole Backgrounds

Abstract

We study the quantum vacuum zero point energy in the Schwarzschild black hole as well as in the Nariai limit of the dS-Schwarzschild backgrounds. We show that the regularized vacuum energy density near the black hole and also in the Nariai setup match exactly with the corresponding value in the flat background, scaling with the fourth power of the mass of the quantum field. The horizon radius of the dS space created from the vacuum zero point energy introduces a new length scale which should be compared with the black hole horizon radius. There is an upper limiting mass for the black hole immersed in the vacuum zero point energy which is determined by the mass of the Nariai metric associated to the dS background constructed from zero point energy. We calculate the variance in the distribution of the vacuum zero point energy and the density contrast and show that it develops strong inhomogeneities on sub-horizon scales.

arXiv commentv3, typos corrected. v2, discussions improved, matches published version. 27 pages, 3 figures

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Cited by in corpus (5)

• Running vacuum in QFT in FLRW spacetime: The dynamics of ${\rho }_{\mathrm{vac}}(H)$ from the quantized matter fields
• Multiple transitions in vacuum dark energy and $H_0$ tension
• On the backreaction issue for the black hole in de Sitter space-time
• Vacuum Zero Point Energy and its Statistical Correlations in dS Background
• On the origin of the holographic universe