Could LIV/noncommutativity alleviate the cosmological constant problem

Abstract

We test the hypothesis that in models with an explicit breaking of Lorentz invariance (LIV models) the problem with the cosmological constant may, if not already be solved, then at least may partially be mitigated by improving its UV behaviour. Certain class of noncommutative models that have a well defined dual momentum space geometry and in addition set up a suitable frame for developing the appropriate DSR models are also subject to the same test.

18 pages, 2 figures

References in corpus (8)

• Fractal properties of quantum spacetime
• Modified Dispersion Relations lead to a finite Zero Point Gravitational Energy
• Diffusion on $\kappa$-Minkowski space
• A noncommutative approach to the cosmological constant problem
• Weak gravity conjecture in the asymptotical dS and AdS background
• Planck-scale dimensional reduction without a preferred frame
• Weak Gravity Conjecture for Noncommutative Field Theory
• Weak Gravity Conjecture with Large Extra Dimensions

Cited by in corpus (2)

• Vacuum energy and the cosmological constant problem in $\kappa$-Poincaré invariant field theories
• Circularly polarized gravitational waves in Chern-Simons gravity originated from an axion domain wall