Superconducting loop quantum gravity and the cosmological constant

Stephon H. S. Alexander; Gianluca Calcagni

doi:10.1016/j.physletb.2009.01.046

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arXiv · 0806.4382

Superconducting loop quantum gravity and the cosmological constant

Stephon H. S. Alexander·Gianluca Calcagni

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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.

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Stephon H. S. Alexander, Gianluca Calcagni. 2009-02-23. Superconducting loop quantum gravity and the cosmological constant. https://doi.org/10.1016/j.physletb.2009.01.046

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