Work

Revisiting the Immirzi parameter: Landauer’s principle and alternative entropy frameworks in loop quantum gravity

Year: 2025

Type: article

Abstract: This paper investigates the implications from area quantization in Loop Quantum Gravity, particularly focusing on the application of the Landauer principle – a fundamental thermodynamic concept establishing a connection between information theory and thermodynamics. By leveraging the Landauer principle in conjunction with the Bekenstein–Hawking entropy law, we derive the usual value for the Immirzi parameter precisely, $$\gamma = \ln 2/(\pi \sqrt{3})$$ γ = ln 2 / ( π 3 ) , without using the typical procedure that involves the Boltzmann–Gibbs entropy. Furthermore, following an analogous procedure, we derive a modified expression for the Immirzi parameter aligned with Barrow’s entropy formulation. Our analysis also yields a new expression for the Immirzi parameter consistent with a corresponding modified Kaniadakis entropy for black hole entropy further illustrating, along with Barrow’s entropy, the applicability of Landauer’s principle in alternative statistical contexts within black hole physics.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-025-14783-w

Authors: Everton M. C. Abreu, Jorge Ananias Neto, Ronaldo Thibes

Institutions: Universidade Federal do Rio de Janeiro, Universidade Federal Rural do Rio de Janeiro, Universidade Federal de Juiz de Fora, Southwest Bahia State University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Conselho Nacional de Desenvolvimento Científico e Tecnológico

Award: G5721965374