Barbero-Immirzi Value from Experiment

Abstract

We consider General Relativity as a limit case of the Scalar-Tensor theory with Barbero-Immirzi field when the field tends to a constant. We use Shapiro time delay experimental limit of $1/w=(2.1\pm 2.3)10^{-5}$ provided by the Cassini spacecraft to find the Barbero-Immirzi parameter value.

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Cited by in corpus (2)

• Primordial black holes in loop quantum cosmology: The effect on the threshold
• Constraining the Barbero-Immirzi parameter from the duration of inflation in loop quantum cosmology