Colloque national Action Dark Energy 2021 - 5ème édition

The cosmological constant as a classical eigenvalue

Non programmé

20m

Amphithéâtre Hermite (Institut Henri Poincaré)

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.

Documents de présentation

darkenergy2021_manfredi.pdf

darkenergy2021_manfredi.pptx