Dark energy from quantum fluctuations

Details Dark energy from quantum fluctuations Dark energy from quantum fluctuations

2009-10-27

arxiv.org/abs/0910.5145v2

Ann. Phys. (Berlin) 19, No. 3-5, 312-315 (2010)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages (in AdP style), 2 references added, prepared for the proceedings of the Grassmannian Conference in Fundamental Cosmolo

Scientific paper

10.1002/andp.201010435

We have derived the quantum vacuum pressure P_vac as a primary entity, removing a trivial and a gauge terms from the cosmological constant-like part (the zeroth term) of the effective action for a free matter field. The quantum vacuum energy density G_vac appears a secondary entity, but both are of expected order. Moreover P_vac and G_vac are dynamical, and therefore they can be used in the Einstein equations. In particular, they could dynamically support holographic dark energy model as well as the `thermodynamic' one.

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