Superconducting loop quantum gravity and the cosmological constant

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We argue that the cosmological constant is exponentially suppressed in a candidate ground state of loop quantum gravity as a nonperturbative effect of a holographic Fermi-liquid theory living on a two-dimensional spacetime. Ashtekar connection components, corresponding to degenerate gravitational configurations breaking large gauge invariance and CP symmetry, behave as composite fermions that condense as in Bardeen-Cooper-Schrieffer theory of superconductivity. Cooper pairs admit a description as wormholes on a de Sitter boundary.
10 pages; v2 matches the published version

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High Energy Physics - Theory, Astrophysics, Superconductivity, General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/220844

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0806.4382
 http://arxiv.org/abs/0806.4382
 Physics Letters B 672 (2009) 386
 doi:10.1016/j.physletb.2009.01.046

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arXiv