Modeling repulsive gravity with creation

Modeling Repulsive Gravity with Creation

There is a growing interest in the cosmologists for theories with negative energy scalar fields and creation, in order to model a repulsive gravity. The classical steady state cosmology proposed by Bondi, Gold and Hoyle in 1948, was the first such theory which used a negative kinetic energy creation field to invoke creation of matter. We emphasize that creation plays very crucial role in cosmol...

Repulsive gravity in the very early Universe

I present two examples in which the curvature singularity of a radiationdominated Universe is regularized by (a) the repulsive effects of spin interactions, and (b) the repulsive effects arising from a breaking of the local gravitational gauge symmetry. In both cases the collapse of an initial, asymptotically flat state is stopped, and the Universe bounces towards a state of decelerated expansi...

What if gravity becomes really repulsive in the future?

The current acceleration of the Universe is one of the most puzzling issues in theoretical physics nowadays. We are far from giving an answer in this letter to the question of its nature. Yet, with the observations we have at hand, we analyse the different patterns that the gravitational potential can show in the future. Surprisingly, gravity not only can get weaker in the near future, it can e...

Clustering with Repulsive Prototypes

Modeling for E-Service Creation

Today, the Internet provides a large set of mostly independent resources. In the near future, the Internet will provide e-services built by combining resources to achieve specific goals. This improvement will be possible thanks to new framework technologies, such as E-Speak, Jini, or the Open Agent Architecture. These technologies allow providers to create, compose, deploy, and advertise new e-...