Quantum Information Remote Carnot Engines and Voltage Transformers

A physical system out of thermal equilibrium is a resource for obtaining useful work when a heat bath at some temperature is available. Information Heat Engines are the devices which generalize the Szilard cylinders and make use of the celebrated Maxwell demons to this end. In this paper, we conside...

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Main Authors: Jose Diazdelacruz, Miguel Angel Martin-Delgado
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/21/2/127
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author Jose Diazdelacruz
Miguel Angel Martin-Delgado
author_facet Jose Diazdelacruz
Miguel Angel Martin-Delgado
author_sort Jose Diazdelacruz
collection DOAJ
description A physical system out of thermal equilibrium is a resource for obtaining useful work when a heat bath at some temperature is available. Information Heat Engines are the devices which generalize the Szilard cylinders and make use of the celebrated Maxwell demons to this end. In this paper, we consider a thermo-chemical reservoir of electrons which can be exchanged for entropy and work. Qubits are used as messengers between electron reservoirs to implement long-range voltage transformers with neither electrical nor magnetic interactions between the primary and secondary circuits. When they are at different temperatures, the transformers work according to Carnot cycles. A generalization is carried out to consider an electrical network where quantum techniques can furnish additional security.
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spelling doaj.art-4d5a09ff65b148ffbb6d5e85b61269622022-12-22T03:18:48ZengMDPI AGEntropy1099-43002019-01-0121212710.3390/e21020127e21020127Quantum Information Remote Carnot Engines and Voltage TransformersJose Diazdelacruz0Miguel Angel Martin-Delgado1Department of Applied Physics and Materials Engineering, Universidad Politecnica de Madrid, 28040 Madrid, SpainDepartment of Theoretical Physics, Universidad Complutense de Madrid, 28040 Madrid, SpainA physical system out of thermal equilibrium is a resource for obtaining useful work when a heat bath at some temperature is available. Information Heat Engines are the devices which generalize the Szilard cylinders and make use of the celebrated Maxwell demons to this end. In this paper, we consider a thermo-chemical reservoir of electrons which can be exchanged for entropy and work. Qubits are used as messengers between electron reservoirs to implement long-range voltage transformers with neither electrical nor magnetic interactions between the primary and secondary circuits. When they are at different temperatures, the transformers work according to Carnot cycles. A generalization is carried out to consider an electrical network where quantum techniques can furnish additional security.https://www.mdpi.com/1099-4300/21/2/127quantum information heat enginesquantum thermodynamicsentanglement entropyquantum cryptography
spellingShingle Jose Diazdelacruz
Miguel Angel Martin-Delgado
Quantum Information Remote Carnot Engines and Voltage Transformers
Entropy
quantum information heat engines
quantum thermodynamics
entanglement entropy
quantum cryptography
title Quantum Information Remote Carnot Engines and Voltage Transformers
title_full Quantum Information Remote Carnot Engines and Voltage Transformers
title_fullStr Quantum Information Remote Carnot Engines and Voltage Transformers
title_full_unstemmed Quantum Information Remote Carnot Engines and Voltage Transformers
title_short Quantum Information Remote Carnot Engines and Voltage Transformers
title_sort quantum information remote carnot engines and voltage transformers
topic quantum information heat engines
quantum thermodynamics
entanglement entropy
quantum cryptography
url https://www.mdpi.com/1099-4300/21/2/127
work_keys_str_mv AT josediazdelacruz quantuminformationremotecarnotenginesandvoltagetransformers
AT miguelangelmartindelgado quantuminformationremotecarnotenginesandvoltagetransformers