A Covariant Non-Local Model of Bohm’s Quantum Potential

Assuming that the energy of a gas depends non-locally on the logarithm of its mass density, the body force in the resulting equation of motion consists of the sum of density gradient terms. Truncating this series after the second term, Bohm’s quantum potential and the Madelung equation are obtained,...

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Main Authors: Roberto Mauri, Massimiliano Giona
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/6/915
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author Roberto Mauri
Massimiliano Giona
author_facet Roberto Mauri
Massimiliano Giona
author_sort Roberto Mauri
collection DOAJ
description Assuming that the energy of a gas depends non-locally on the logarithm of its mass density, the body force in the resulting equation of motion consists of the sum of density gradient terms. Truncating this series after the second term, Bohm’s quantum potential and the Madelung equation are obtained, showing explicitly that some of the hypotheses that led to the formulation of quantum mechanics do admit a classical interpretation based on non-locality. Here, we generalize this approach imposing a finite speed of propagation of any perturbation, thus determining a covariant formulation of the Madelung equation.
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spelling doaj.art-fee4c633c6034ee497de9fdfd77d5ef82023-11-18T10:18:11ZengMDPI AGEntropy1099-43002023-06-0125691510.3390/e25060915A Covariant Non-Local Model of Bohm’s Quantum PotentialRoberto Mauri0Massimiliano Giona1DICI, Department of Civil and Industrial Engineering, Università di Pisa, 56122 Pisa, ItalyDICMA, Department of Industrial Engineering, Università di Roma La Sapienza, 00184 Roma, ItalyAssuming that the energy of a gas depends non-locally on the logarithm of its mass density, the body force in the resulting equation of motion consists of the sum of density gradient terms. Truncating this series after the second term, Bohm’s quantum potential and the Madelung equation are obtained, showing explicitly that some of the hypotheses that led to the formulation of quantum mechanics do admit a classical interpretation based on non-locality. Here, we generalize this approach imposing a finite speed of propagation of any perturbation, thus determining a covariant formulation of the Madelung equation.https://www.mdpi.com/1099-4300/25/6/915non-local quantum mechanicsBohm quantum potentialMadelung equation
spellingShingle Roberto Mauri
Massimiliano Giona
A Covariant Non-Local Model of Bohm’s Quantum Potential
Entropy
non-local quantum mechanics
Bohm quantum potential
Madelung equation
title A Covariant Non-Local Model of Bohm’s Quantum Potential
title_full A Covariant Non-Local Model of Bohm’s Quantum Potential
title_fullStr A Covariant Non-Local Model of Bohm’s Quantum Potential
title_full_unstemmed A Covariant Non-Local Model of Bohm’s Quantum Potential
title_short A Covariant Non-Local Model of Bohm’s Quantum Potential
title_sort covariant non local model of bohm s quantum potential
topic non-local quantum mechanics
Bohm quantum potential
Madelung equation
url https://www.mdpi.com/1099-4300/25/6/915
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