Lorentz-invariant membranes and finite matrix approximations
arXiv:1101.4403 · doi:10.1016/j.nuclphysb.2011.03.028
Abstract
The question of Lorentz invariance for finite N approximations of relativistic membranes is addressed. We find that one of the classical manifestations of Lorentz-invariance is not possible for NxN matrices (at least when N=2 or 3). How the symmetry is restored in the large N limit is studied numerically.
11 pages, 1 figure