Shaken, but not stirred - Potts model coupled to quantum gravity

Details Shaken, but not stirred - Potts model coupled to quantum gravity Shaken, but not stirred - Potts model coupled to quantum gravity

2008-06-21

arxiv.org/abs/0806.3506v1

Nucl.Phys.B807:251-264,2009

Physics

High Energy Physics

High Energy Physics - Lattice

19 pages, 9 figures

Scientific paper

10.1016/j.nuclphysb.2008.08.030

We investigate the critical behaviour of both matter and geometry of the three-state Potts model coupled to two-dimensional Lorentzian quantum gravity in the framework of causal dynamical triangulations. Contrary to what general arguments of the effects of disorder suggest, we find strong numerical evidence that the critical exponents of the matter are not changed under the influence of quantum fluctuations in the geometry, compared to their values on fixed, regular lattices. This lends further support to previous findings that quantum gravity models based on causal dynamical triangulations are in many ways better behaved than their Euclidean counterparts.

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