The mass of the graviton and the cosmological constant

Details The mass of the graviton and the cosmological constant The mass of the graviton and the cosmological constant

2002-10-17

arxiv.org/abs/gr-qc/0210058v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Title changed and few details added, without any changes in the conclusion

Scientific paper

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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