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arXiv · gr-qc/9803043

The Husain-Kuchar Model: Time Variables and Non-degenerate Metrics

J. Fernando Barbero G.·Alfredo Tiemblo·Romualdo Treseguerres
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Abstract

We study the Husain-Kuchar model by introducing a new action principle similar to the self-dual action used in the Ashtekar variables approach to Quantum Gravity. This new action has several interesting features; among them, the presence of a scalar time variable that allows the definition of geometric observables without adding new degrees of freedom, the appearance of a natural non-degenerate four-metric and the possibility of coupling ordinary matter.

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J. Fernando Barbero G., Alfredo Tiemblo, Romualdo Treseguerres. 1998-03-12. The Husain-Kuchar Model: Time Variables and Non-degenerate Metrics. https://doi.org/10.1103/physrevd.57.6104

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