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arXiv · 1011.2041

Inducing Barbero-Immirzi Connections along SU(2)-reductions of Bundles on Spacetime

L. Fatibene·M. Ferraris·M. Francaviglia
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Abstract

We shall present here a general apt technique to induce connections along bundle reductions which is different from the standard restriction. This clarifies and generalizes the standard procedure to define Barbero-Immirzi (BI) connection, though on spacetime. The standard spacial BI connection used in LQG is then obtained by its spacetime version by standard restriction. The general prescription to define such a reduced connection is interesting from a mathematical viewpoint and it allows a general and direct control on transformation laws of the induced object. Moreover, unlike what happens by using standard restriction, we shall show that once a bundle reduction is given, then any connection induces a reduced connection with no constraint on the original holonomy as it happens when connections are simply restricted.

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L. Fatibene, M. Ferraris, M. Francaviglia. 2010-11-09. Inducing Barbero-Immirzi Connections along SU(2)-reductions of Bundles on Spacetime. https://doi.org/10.1103/physrevd.84.064035

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