Does the Immirzi Parameter Determine Black Hole Entropy in Loop Quantum Gravity?

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The discussion centers on the role of the Immirzi parameter (IP) in loop quantum gravity (LQG) and its implications for black hole entropy calculations. Participants express confusion over the necessity of fixing the IP to match semi-classical entropy, despite claims that it plays a minimal role in certain spin foam models. The conversation highlights the importance of the IP in defining coherent states and establishing the semi-classical limit of LQG. There is a consensus that the current understanding of LQG has evolved significantly since earlier models, emphasizing the need to focus on recent papers for clarity. Ultimately, the discourse aims to deepen the understanding of the physics surrounding the Immirzi parameter and its implications for black hole entropy in loop quantum gravity.
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Perhaps we shall not have a good answer to that question until Rovelli writes a paper on it, because Rovelli seems to be the only guy in the LQG community able to write a paper truly understandable to a wider physics community.
 

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