Homogeneous and isotropic big rips? | Zendy

Massimo Giovannini | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Homogeneous and isotropic big rips?

Author(s) -

Massimo Giovannini

Publication year - 2005

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Language(s) - English

Resource type - Journals

eISSN - 1550-7998

pISSN - 1550-2368

DOI - 10.1103/physrevd.72.083508

Subject(s) - gravitational singularity , isotropy , barotropic fluid , homogeneous , anisotropy , space (punctuation) , physics , classical mechanics , geometry , theoretical physics , statistical physics , mathematics , mechanics , computer science , quantum mechanics , operating system

We investigate the way big rips are approached in a fully inhomogeneousdescription of the space-time geometry. If the pressure and energy densitiesare connected by a (supernegative) barotropic index, the spatial gradients andthe anisotropic expansion decay as the big rip is approached. This behaviour iscontrasted with the usual big-bang singularities. A similar analysis isperformed in the case of sudden (quiescent) singularities and it is argued thatthe spatial gradients may well be non-negligible in the vicinity of pressuresingularities.Comment: 8 page

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research