The mass of the graviton and the cosmological constant
classification
🌀 gr-qc
hep-th
keywords
gravitonmassacquiresbackgroundconstantcosmologicaldegreesfield
read the original abstract
We show that the graviton acquires a mass in a de Sitter background given by $m_{g}^{2}=-{2/3}\Lambda.$ This is precisely the fine-tuning value required for the perturbed gravitational field to mantain its two degrees of freedom.
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