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GR: Fachverband Gravitation und Relativitätstheorie

GR 3: Kosmologie II

GR 3.3: Talk

Monday, February 27, 2012, 17:20–17:40, ZHG 002

Dynamical cancellation of an arbitrary cosmological constant by vector fields — •Viacheslav Emelyanov — KIT, ITP, Karlsruhe, Germany

The cosmological constant problem (CCP) has two aspects. Firstly, the theoretical estimates of the cosmological constant (CC) and observational data are significantly different. Secondly, one needs to explain its small, but nonzero value. The first CCP motivates us to find a dynamical adjustment mechanism that will compensate the vacuum energy and bring it down to cosmologically acceptable levels. In this talk I would like to present a particular vector model realizing this approach.