Cosmology without an Initial Singularity

Abstract

We present a model of the expanding Universe that begins in a zero energy vacuum state. The Universe results from the spontaneous breaking of the electroweak symmetry, wherein the vacuum with positive expectation energy produces the dark and visible matter and launches the expansion. Our model Universe is twice as old as the standard value but the Hubble constant, cosmological constant and ratio of matter to dark energy are comparable to concordance values. The development of structure may have occurred earlier. Finally, we speculate regarding the origin of each component of the Universe due to a coincidence between the sine of the Weinberg angle and the ratio of matter to dark energy.