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Cosmological sector of Loop Quantum Gravity: a Yang-Mills approach

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arXiv:2405.03019v1 Announce Type: new
Abstract: In this manuscript, we address the issue of the loss of SU(2) internal symmetry in Loop Quantum Cosmology and its relationship with Loop Quantum Gravity. Drawing inspiration from Yang-Mills theory and employing the framework of fiber bundle theory, we successfully identify a cosmological sector for General Relativity in Ashtekar variables, which preserves the SU(2) structure of the theory and the diffeomorphism gauge symmetry. Additionally, we proceed to quantize it using the machinery of Loop Quantum Gravity, uncovering that the resulting spin-network states exhibit distinctive symmetry properties and encompass the usual states of Loop Quantum Cosmology.

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