Superconducting loop quantum gravity and the cosmological constant
High Energy Physics - Theory
2009-02-23 v2 Astrophysics
Superconductivity
General Relativity and Quantum Cosmology
Abstract
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.
Cite
@article{arxiv.0806.4382,
title = {Superconducting loop quantum gravity and the cosmological constant},
author = {Stephon H. S. Alexander and Gianluca Calcagni},
journal= {arXiv preprint arXiv:0806.4382},
year = {2009}
}
Comments
10 pages; v2 matches the published version