In this paper shown; on the one hand, as the tensor-scalar polarization modes B ratio, it is derived from the initial properties of the vacuum due to the unification of gravitation and electromagnetism. This ratio suggest that it is 2/Pi ^ 2 (0.20262423673), as an upper bound. Secondly; demonstrates that it is not necessary to introduce any inflaton scalar field or similar ( ad-hoc fields ); If on the other hand, is the same structure of the vacuum and the quantization of gravity which perfectly explains this initial exponential expansion of the universe. In some respects exponential vacuum emptying has certain similarities with the emission of radiation of a black hole. This quantization of gravity and its unification with electromagnetic field, shown in previous work; It allows deriving complete accurately the exponential factor of inflation; and therefore calculate accurately the Hubble constant, mass of the universe, matter density, the value of the vacuum energy density, the GUT mass scale ( bosons X,Y ), the gravitino mass and more. The method of quantize gravity used in this work; It is based on dimensionless constants that must be enforced in accordance with general relativity. We demonstrate the existence of quantum wormholes as the basic units of space-time energy, as an inseparable system.These quantum wormholes explain the instantaneous speed of propagation of entangled particles. Or what is the same: an infinite speed, with the condition of zero net energy. Another consequence of the dimensionless quantization of gravity; is the existence of a constant gravitational acceleration that permeates all space. Its nature is quantum mechanical, and inseparable from the Hubble constant. This work is not mere speculation; since applying this vacuum gravitational acceleration; first allows us to explain and accurately calculate the anomaly of the orbital eccentricity of the Moon. This anomaly was detected and accurately measured with the laser ranging experiment. This same constant acceleration in vacuum (in all coordinate of space), which interacts with the masses; explains the almost constant rotation curves of galaxies and clusters of galaxies. Therefore there is no dark matter. Current interpretation of quantum mechanics is completely erroneous. We explain that; as the de Broglie–Bohm theory, also known as the pilot-wave theory; is a much more realistic and correct interpretation of quantum mechanics. The current assumption that there is reality no defined; until the act of observation does not occur; is an aberrant, illogical assertion false and derived from the obsolete current interpretation of quantum mechanics. The age of the universe derived from the Hubble constant is a wrong estimate; due to absolute ignorance of the true nature of this constant and its physical implications. The universe acquired its current size in the very short period of time, a unit of Planck time. We understand that this work is dense and completely revolutionary consequences. Experiments reflection of lasers; type of the laser ranging experiment; undoubtedly will confirm one of the main results: the existence of an intrinsic acceleration of vacuum of gravitational quantum mechanical nature, which explains the rotation curves of galaxies and clusters of galaxies; and which thus makes unnecessary the existence of dark matter.