About Dark Energy

We have considered the physical space filled by a quantum fluid made up of discrete elements organized into several coexisting phases. In this model, what we call “dark energy” appears as main phase of the Vacuum, we propose here that it is the phase associated with the fundamental level of this quantum fluid. After an examination of its main properties, we show that the refractive index of the real vacuum, which is consisting largely of dark energy and fossil radiation, has an “abnormal” value compared to it. We thus verify that the inverse of the fine structure constant associated with the dark energy is indeed the integer 137.