Screening Vector Field Modifications of General Relativity

Дата и время публикации : 2012-12-09T22:01:53Z

Авторы публикации и институты :
Jose Beltrán Jiménez
André Luís Delvas Fróes
David F. Mota

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 10 pages, 4 figures, revised version, to be published in PLB
Первичная категория: astro-ph.CO

Все категории : astro-ph.CO, gr-qc

Краткий обзор статьи: A screening mechanism for conformal vector-tensor modifications of general relativity is proposed. The conformal factor depends on the norm of the vector field and makes the field to vanish in high dense regions, whereas drives it to a non-null value in low density environments. Such process occurs due to a spontaneous symmetry breaking mechanism and gives rise to both the screening of fifth forces as well as Lorentz violations. The cosmology and local constraints are also computed.

Category: Physics