Nonlinearity and quantumness in thermodynamics: From principles to technologies

The impact of quantum mechanics on thermodynamics, particularly on the principles and designs of heat machines (HMs), has been limited by the incompatibility of quantum coherent evolution with the dissipative, open-system nature of all existing HMs and their basic structure, which has not been radic...

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Bibliographic Details
Main Authors: Gershon Kurizki, Nilakantha Meher, Tomáš Opatrný
Format: Article
Language:English
Published: AIP Publishing LLC 2025-03-01
Series:APL Quantum
Online Access:http://dx.doi.org/10.1063/5.0242787
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Summary:The impact of quantum mechanics on thermodynamics, particularly on the principles and designs of heat machines (HMs), has been limited by the incompatibility of quantum coherent evolution with the dissipative, open-system nature of all existing HMs and their basic structure, which has not been radically changed since Carnot. We have recently proposed a paradigm change whereby conventional HM functionality is replaced by few-mode coherent, closed systems with nonlinear, e.g., cross-Kerr, inter-mode couplings. These couplings allow us to coherently filter incident thermal noise, transforming it into a resource of work and information. Current technological advances enable heat engines, noise sensors, or microscopes based on such designs to operate with thermal noise sources of few photons. This paradigm shift opens a path toward radically new understanding and exploitation of the relation between coherent, quantum or classical, evolution and thermodynamic behavior.
ISSN:2835-0103