Comment on ``Immirzi parameter in quantum general relativity''

Details Comment on ``Immirzi parameter in quantum general relativity'' Comment on ``Immirzi parameter in quantum general relativity''

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001phrvd..64d8501s&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 64, Issue 4, August 15, 2001, id.048501

Physics

4

Canonical Quantization

Scientific paper

The Immirzi parameter is a free parameter which appears in the physical predictions of loop quantum gravity and is sometimes viewed as a quantization ambiguity. Interpretations have been offered for the Immirzi ambiguity, but there does not appear to be a clear understanding or even a consensus about its origin and significance. We show that a previously discussed example containing a ``finite dimensional analogue'' of the Immirzi ambiguity is fallacious, in the sense that the ambiguity in this example is not intrinsic to the system, but introduced artificially by compactifying the configuration space.

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