Delta Gravity, Dark Energy and the accelerated expansion of the Universe

Septiembre 1, 2015
De 3:00pm hasta 4:00pm

IFT Seminar Room/Red Room

Specialist level
Speaker: 
Jorge Alfaro
Institution: 
Pontificia U., Santiago de Chile
Location&Place: 

IFT Seminar Room/Red Room

Abstract: 

We present a model of the gravitational field based on two symmetric tensors. The equations of motion of test particles are derived: Massive particles do not follow a geodesic but massless particles trajectories are null geodesics of an effective metric. Outside matter, the predictions of the model coincide exactly with General Relativity, so all classical tests are satisfied. In Cosmology, we get accelerated expansion without a cosmological constant.