177 citations · 582 across the 6 of their papers we have counts for
6 papers
Provenance of Lyfe: Chemical Autonomous Agents Surviving through Associative Learning
Stuart Bartlett, David Louapre
We present a benchmark study of autonomous, chemical agents exhibiting associative learning of an environmental feature. Associative learning has been widely studied in cognitive s…
Ponzano-Regge model revisited II: Equivalence with Chern-Simons
Laurent Freidel, David Louapre
We provide a mathematical definition of the gauge fixed Ponzano-Regge model showing that it gives a measure on the space of flat connections whose volume is well defined. We then s…
Ponzano-Regge model revisited I: Gauge fixing, observables and interacting spinning particles
Laurent Freidel, David Louapre
We show how to properly gauge fix all the symmetries of the Ponzano-Regge model for 3D quantum gravity. This amounts to do explicit finite computations for transition amplitudes. W…
Diffeomorphisms and spin foam models
Laurent Freidel, David Louapre
We study the action of diffeomorphisms on spin foam models. We prove that in 3 dimensions, there is a residual action of the diffeomorphisms that explains the naive divergences of…
Non-perturbative summation over 3D discrete topologies
Laurent Freidel, David Louapre
We construct a group field theory which realizes the sum of gravity amplitudes over all three dimensional topologies trough a perturbative expansion. We prove this theory to be uni…
Asymptotics of 6j and 10j symbols
Laurent Freidel, David Louapre
It is well known that the building blocks for state sum models of quantum gravity are given by 6j and 10j symbols. In this work we study the asymptotics of these symbols by using t…