**Category:**

Research Papers

**Sub-Category:**

Quantum Theory / Particle Physics

**Date Published:**

October 10, 2024

**Keywords:**

Quantum gravity hydrodynamics, graviton-photon interaction, contraction and expansion of the primordial universe, Big Bang, primordial sphere, cosmic back- ground radiation

**Abstract:**

In the present work, the fundamental equations of quantum gravity hydrodynamics are
solved for the graviton-photon interaction in the primordial universe. We start with the
basic assumption that photons with spin 0 and with spin ± 1 are in creation and
annihilation relationship (= in exchange relationship) to each other and that their over-
all effect produces the gravitational interaction. We also assume that the repulsive
compression potential and the attractive Newtonian gravitational potential act between
compressed photons in the primordial universe. In the contraction phase, the attractive
Newtonian gravitational potential dominates and compresses the radius of the primor-
dial universe from 3.59041×10-20 fm to 1.84937×10-58 fm . At the end of the contraction
phase of the primordial universe, the Big Bang occurs, in which the total mass of to-
day's universe is literally ejected (= repelled) from the primordial sphere (= from the
primordial quantum state). However, in order for the Big Bang to occur at an energy
density of 2.1174×10255 MeV/fm3, the attractive Newtonian gravitational potential must
disappear and the repulsive compression potential must gain the upper hand. The con-
traction suddenly changes into the Big Bang and inflation (= swelling) in order to re-
verse the extremely high photon density achieved during the contraction inside the pri-
mordial sphere.../...

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