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Updated: Sep 28, 2025

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Geometric energy transfer in two-component systems
Ryan Requist1, Chen Li2, Eberhard K U Gross1
1Fritz Haber Center for Molecular Dynamics, Institute of Chemistry Hebrew University of Jerusalem, Safra Campus, Jerusalem 91904, Israel.
Abstract:
Factoring a wave function into marginal and conditional factors partitions the subsystem kinetic energy into two terms. The first depends solely on the marginal wave function, through its gauge-covariant derivative, while the second depends on the quantum metric of the conditional wave function over the manifold of marginal variables. We derive an identity for the rate of change of the second term. This article is part of the theme issue 'Chemistry without the Born-Oppenheimer approximation'.
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