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arXiv · 1210.0418

Interpretation of the triad orientations in loop quantum cosmology

Claus Kiefer·Christian Schell
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Abstract

Loop quantum cosmology allows for arbitrary superpositions of the triad variable. We show here how these superpositions can become indistinguishable from a classical mixture by the interaction with fermions. We calculate the reduced density matrix for a locally rotationally symmetric Bianchi I model and show that the purity factor for the triads decreases by decoherence. In this way, the universe assumes a definite orientation.

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Claus Kiefer, Christian Schell. 2013-01-22. Interpretation of the triad orientations in loop quantum cosmology. https://doi.org/10.1088/0264-9381%2F30%2F3%2F035008

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