4-dimensional BF Gravity on the Lattice
高能物理 - 理论
2009-10-31 v1
摘要
We propose the lattice version of gravity action whose partition function leads to the product of a particular form of 15- symbol which corresponds to a 4-simplex. The action is explicitly constructed by lattice field defined on triangles and link variables defined on dual links and is shown to be invariant under lattice local Lorentz transformation and Kalb-Ramond gauge transformation. We explicitly show that the partition function is Pachner move invariant and thus topological. The action includes the vanishing holonomy constraint which can be interpreted as a gauge fixing condition. This formulation of lattice theory can be generalized into arbitrary dimensions.
引用
@article{arxiv.hep-th/9911228,
title = {4-dimensional BF Gravity on the Lattice},
author = {Noboru Kawamoto and Noriaki Sato and Yukiya Uchida},
journal= {arXiv preprint arXiv:hep-th/9911228},
year = {2009}
}
备注
LaTeX2e, 45 pages, 55 eps figures