Lorentz Violation of Quantum Gravity

Details Lorentz Violation of Quantum Gravity Lorentz Violation of Quantum Gravity

2009-05-11

arxiv.org/abs/0905.1668v4

Class.Quant.Grav.27:135016,2010

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, minor change and reference added. Typos corrected. To be published in Class. Quant. Grav.

Scientific paper

10.1088/0264-9381/27/13/135016

A quantum gravity theory which becomes renormalizable at short distances due to a spontaneous symmetry breaking of Lorentz invariance and diffeomorphism invariance is studied. A breaking of Lorentz invariance with the breaking patterns $SO(3,1)\to O(3)$ and $SO(3,1)\to O(2)$, describing 3+1 and 2+1 quantum gravity, respectively, is proposed. A complex time dependent Schr\"odinger equation (generalized Wheeler-DeWitt equation) for the wave function of the universe exists in the spontaneously broken symmetry phase at Planck energy and in the early universe, uniting quantum mechanics and general relativity. An explanation of the second law of thermodynamics and the spontaneous creation of matter in the early universe can be obtained in the symmetry broken phase of gravity.

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