13–14 oct. 2021
Institut Henri Poincaré
Fuseau horaire Europe/Paris

The cosmological constant as a classical eigenvalue

Non programmé
20m
Amphithéâtre Hermite (Institut Henri Poincaré)

Amphithéâtre Hermite

Institut Henri Poincaré

11 rue Pierre et Marie Curie, 75005 Paris accès : http://www.ihp.fr/fr/guide_pratique
Contribué

Orateur

Giovanni Manfredi (CNRS)

Description

We propose to recast Einstein's field equations as a nonlinear eigenvalue problem, where the cosmological constant $\Lambda$ plays the role of the (smallest) eigenvalue. This mathematical interpretation is fully worked out for a simple classical model of scalar gravity. The essential ingredient for the feasibility of this approach is that the classical field equations be nonlinear, i.e., that the gravitational field is itself a source of gravity. The cosmological consequences and implications of this approach are developed and discussed.

G. Manfredi, Gen Relativ Gravit 53, 31 (2021). ArXiv:2102.09601.

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