Self-tuning vacuum variable and cosmological constant
Nov, 200720 pages
Published in:
- Phys.Rev.D 77 (2008) 085015
e-Print:
- 0711.3170 [gr-qc]
Report number:
- KA-TP-29-2007
View in:
Citations per year
Abstract: (arXiv)
A spacetime independent variable is introduced which characterizes the Lorentz-invariant self-sustained quantum vacuum. The self-tuning of this variable nullifies the effective energy density of the perfect quantum vacuum. The observed smallness of the cosmological constant may then be explained as corresponding to the effective energy density of an imperfect quantum vacuum (perturbed by, e.g., the presence of thermal matter).- 95.36.+x
- 11.30.Cp
- 98.80.Jk
- 04.20.Cv
- energy: density
- vacuum state: energy
- invariance: Lorentz
- tensor: energy-momentum
- violation: Lorentz
- pressure
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