Measuring adiabaticity in nonequilibrium quantum systems

A. H. Skelt, R. W. Godby, and I. D'Amico
Phys. Rev. A 98, 012104 – Published 3 July 2018
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Abstract

Understanding out-of-equilibrium quantum dynamics is a critical outstanding problem, with key questions regarding characterizing adiabaticity for applications in quantum technologies. We show how the metric-space approach to quantum mechanics naturally characterizes regimes of quantum dynamics and provides an appealingly visual tool for assessing their degree of adiabaticity. Further, the dynamic trajectories of quantum systems in metric space suggest a lack of ergodicity, thus providing a better understanding of the fundamental one-to-one mapping between densities and wave functions.

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  • Received 2 November 2017

DOI:https://doi.org/10.1103/PhysRevA.98.012104

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology

Authors & Affiliations

A. H. Skelt, R. W. Godby, and I. D'Amico

  • Department of Physics, University of York, York YO10 5DD, United Kingdom

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Issue

Vol. 98, Iss. 1 — July 2018

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