Enhanced Photonic Maxwell's Demon with Correlated Baths

• URL: http://arxiv.org/abs/2107.09686v4
• Date: Wed, 14 Sep 2022 17:39:21 GMT
• Title: Enhanced Photonic Maxwell's Demon with Correlated Baths
• Authors: Guilherme L. Zanin, Michael Antesberger, Maxime J. Jacquet, Paulo H. Souto Ribeiro, Lee A. Rozema and Philip Walther
• Abstract summary: Maxwell's Demon is at the heart of the interrelation between quantum information processing and thermodynamics. We implement a photonic version of Maxwell's Demon with active feed-forward in a fibre-based system using ultrafast optical switches.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Maxwell's Demon is at the heart of the interrelation between quantum information processing and thermodynamics. In this thought experiment, a demon generates a temperature gradient between two thermal baths initially at equilibrium by gaining information at the single-particle level and applying classical feed-forward operations, allowing for the extraction of work. Here we implement a photonic version of Maxwell's Demon with active feed-forward in a fibre-based system using ultrafast optical switches. We experimentally show that, if correlations exist between the two thermal baths, the Demon can generate a temperature difference over an order of magnitude larger than without correlations, and so extract more work. Our work demonstrates the great potential of photonic experiments -- which provide a unique degree of control on the system -- to access new regimes in quantum thermodynamics.

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