English

Non-commutative holonomies in 2+1 LQG and Kauffman's brackets

General Relativity and Quantum Cosmology 2012-08-15 v1

Abstract

We investigate the canonical quantization of 2+1 gravity with {\Lambda} > 0 in the canonical framework of LQG. A natural regularization of the constraints of 2+1 gravity can be defined in terms of the holonomies of A\pm = A \PM \surd{\Lambda}e, where the SU(2) connection A and the triad field e are the conjugated variables of the theory. As a first step towards the quantization of these constraints we study the canonical quantization of the holonomy of the connection A_{\lambda} = A + {\lambda}e acting on spin network links of the kinematical Hilbert space of LQG. We provide an explicit construction of the quantum holonomy operator, exhibiting a close relationship between the action of the quantum holonomy at a crossing and Kauffman's q-deformed crossing identity. The crucial difference is that the result is completely described in terms of standard SU(2) spin network states.

Keywords

Cite

@article{arxiv.1112.1825,
  title  = {Non-commutative holonomies in 2+1 LQG and Kauffman's brackets},
  author = {Karim Noui and Alejandro Perez and Daniele Pranzetti},
  journal= {arXiv preprint arXiv:1112.1825},
  year   = {2012}
}

Comments

4 pages; Proceedings of Loops'11, Madrid, to appear in Journal of Physics: Conference Series (JPCS)