Friday, May 11, 2012

1205.2332 (T. E. Clark et al.)

On Local Dilatation Invariance    [PDF]

T. E. Clark, S. T. Love
The relationship between local Weyl scaling invariant models and local dilatation invariant actions is critically scrutinized. While actions invariant under local Weyl scalings can be constructed in a straightforward manner, actions invariant under local dilatation transformations can only be achieved in a very restrictive case. The invariant couplings of matter fields to an Abelian vector field carrying a non-trivial scaling weight can be easily built, but an invariant Abelian vector kinetic term can only be realized when the local scale symmetry is spontaneously broken.
View original: http://arxiv.org/abs/1205.2332

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