A quantitative theory of coherent delocalization

We define a quantitative measure of coherent delocalization; similarly to the concept of entanglement measures, we require that a measure of coherent delocalization may never increase under processes that do not create coherent superpositions. After a complete characterization of such processes, we...

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Main Authors: Federico Levi, Florian Mintert
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/16/3/033007
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author Federico Levi
Florian Mintert
author_facet Federico Levi
Florian Mintert
author_sort Federico Levi
collection DOAJ
description We define a quantitative measure of coherent delocalization; similarly to the concept of entanglement measures, we require that a measure of coherent delocalization may never increase under processes that do not create coherent superpositions. After a complete characterization of such processes, we prove that a set of recently introduced functions that characterize coherent delocalization never grow under such processes and thus are indeed valid measures.
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spelling doaj.art-660022f83d3344eda35da429519af6dd2023-08-08T11:22:12ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116303300710.1088/1367-2630/16/3/033007A quantitative theory of coherent delocalizationFederico Levi0Florian Mintert1Freiburg Insitute for Advanced Studies, Albert-Ludwigs University of Freiburg, Albertstr. 19, D-79104 Freiburg, GermanyFreiburg Insitute for Advanced Studies, Albert-Ludwigs University of Freiburg, Albertstr. 19, D-79104 Freiburg, GermanyWe define a quantitative measure of coherent delocalization; similarly to the concept of entanglement measures, we require that a measure of coherent delocalization may never increase under processes that do not create coherent superpositions. After a complete characterization of such processes, we prove that a set of recently introduced functions that characterize coherent delocalization never grow under such processes and thus are indeed valid measures.https://doi.org/10.1088/1367-2630/16/3/033007quantum coherencequantum excitation transportcoherent delocalizationentanglement measures05.60.Gg03.67.Mn
spellingShingle Federico Levi
Florian Mintert
A quantitative theory of coherent delocalization
New Journal of Physics
quantum coherence
quantum excitation transport
coherent delocalization
entanglement measures
05.60.Gg
03.67.Mn
title A quantitative theory of coherent delocalization
title_full A quantitative theory of coherent delocalization
title_fullStr A quantitative theory of coherent delocalization
title_full_unstemmed A quantitative theory of coherent delocalization
title_short A quantitative theory of coherent delocalization
title_sort quantitative theory of coherent delocalization
topic quantum coherence
quantum excitation transport
coherent delocalization
entanglement measures
05.60.Gg
03.67.Mn
url https://doi.org/10.1088/1367-2630/16/3/033007
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