Hawking evaporation and the Landauer Principle

2024/07/11 by Marina Cortês, Andrew R. Liddle, Cortês, Marina +1 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Quantum Electrodynamics and Casimir Effect #Quantum Physics (quant-ph) #Relativity and Gravitational Theory #Statistical Mechanics (cond-mat.stat-mech)

paper · pdf · doi:10.48550/arxiv.2407.08777

openalex publication_date 2024/07/11 · openalex created_date 2024/07/17 · openalex updated_date 2026/07/28

Abstract

We show that Hawking black-hole evaporation saturates the Landauer Principle of information thermodynamics. Our result implies that information loss experienced by a black hole during Hawking evaporation takes place as efficiently as possible. We also extend the analysis to the case of Barrow entropy as a phenomenological realization of a fractal event horizon, where the Landauer Principle informs amongst different options for the black hole temperature. To our knowledge, this work is the first identification of the two results as expressions of the same process.

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