Immirzi

Some articles on immirzi:

Loop Quantum Gravity - Key Concepts - Black Hole Entropy
... The problem is that a crucial free parameter in the theory, known as the Immirzi parameter, can only be computed by demanding agreement with Bekenstein and Hawking's calculation of the black hole entropy ... not obtain the Bekenstein-Hawking formula S = A/4 unless the Immirzi parameter is chosen to give this value ... of all non singular black holes directly from theory and independent of Immirzi parameter ...
Immirzi Parameter - Black Hole Thermodynamics
... of area A, the entropy of black holes is seen to be Here is the Immirzi parameter and either or depending on the gauge group used in loop quantum gravity ... So, by choosing the Immirzi parameter to be equal to, one recovers the Bekenstein-Hawking entropy formula ... This computation appears independent of the kind of black hole, since the given Immirzi parameter is always the same ...
Immirzi Parameter - The Reality Conditions
... The Immirzi parameter arises in the process of expressing a Lorentz connection with noncompact group SO(3,1) in terms of a complex connection with values in a compact group of rotations, either SO(3) or its ... Although named after Giorgio Immirzi, the possibility of including this parameter was first pointed out by Fernando Barbero ... that the area spectrum is proportional to the Immirzi parameter ...
Immirzi Parameter
... The Immirzi parameter (also known as the Barbero-Immirzi parameter) is a numerical coefficient appearing in loop quantum gravity, a nonperturbative ... The Immirzi parameter measures the size of the quantum of area in Planck units ...