Dark energy and gravitation

Meeting with Nobel: the invisible thread between dark energy and gravity
Dark energy and gravitational force are two of the great enigmas of physics: two forces are essential in order to understand the behavior of the universe, but of which we still know very little, except that there must be, because otherwise what we observe around us does not explain .

Well, these two forces could be linked by a common thread, "connected at a fundamental level," as he says in this interview, the Nobel Prize winner Brian Schmidt, created during the Lindau Nobel Meeting this year. On the other hand it was precisely Schmidt, with his findings on accelerating expansion of the universe (thanks to which it has won recognition for Physics in 2011) to put the dark energy at the center of scientific speculation.

What really is this mysterious form of energy and how to look for it is not at all clear, for now. But that does not mean it's too soon, according to Schmidt, to also focus on dark energy, with the idea that it can really pop out something new, both from theoretical and experimental point of view.

Sure, having experiments that can identify this mysterious energy will not be easy. But this could also play a role LHC, the protagonist of the spectacular hunt Higgs boson that is going to start churning out new data. Accelerator at CERN, says Schmidt, could get "some unexpected breakthrough that could help us understand how the quantum field theory interacting with gravity."

The connection between dark energy and gravity, in short, may pass right from the difficulty of explaining the force of gravity from the point of view of quantum mechanics, one of the most robust headache for contemporary physics, which has managed to tame, from the point of quantum view, all the elemental forces, but not the severity. And the laborious formulation of a complete theory of the nature of dark energy could then reveal two puzzles at once