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Near-field interferometry of a free-falling nanoparticle from a point-like source

James Bateman Orcid Logo, Stefan Nimmrichter, Klaus Hornberger, Hendrik Ulbricht

Nature Communications, Volume: 5, Start page: 4788

Swansea University Author: James Bateman Orcid Logo

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DOI (Published version): 10.1038/ncomms5788

Abstract

Matter-wave interferometry performed with massive objects elucidates their wave nature and thus tests the quantum superposition principle at large scales. Whereas standard quantum theory places no limit on particle size, alternative, yet untested theories---conceived to explain the apparent quantum...

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Published in: Nature Communications
Published: 2014
URI: https://cronfa.swan.ac.uk/Record/cronfa28698
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first_indexed 2016-06-06T12:25:56Z
last_indexed 2019-08-09T15:26:36Z
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spelling 2019-08-02T11:19:52.3852619 v2 28698 2016-06-06 Near-field interferometry of a free-falling nanoparticle from a point-like source 3b46126aa511514414c6c42c9c6f0654 0000-0003-4885-2539 James Bateman James Bateman true false 2016-06-06 SPH Matter-wave interferometry performed with massive objects elucidates their wave nature and thus tests the quantum superposition principle at large scales. Whereas standard quantum theory places no limit on particle size, alternative, yet untested theories---conceived to explain the apparent quantum to classical transition---forbid macroscopic superpositions. Here we propose an interferometer with a levitated, optically cooled, and then free-falling silicon nanoparticle in the mass range of one million atomic mass units, delocalized over more than 150 nm. The scheme employs the near-field Talbot effect with a single standing-wave laser pulse as a phase grating. Our analysis, which accounts for all relevant sources of decoherence, indicates that this is a viable route towards macroscopic high-mass superpositions using available technology. Journal Article Nature Communications 5 4788 2 9 2014 2014-09-02 10.1038/ncomms5788 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2019-08-02T11:19:52.3852619 2016-06-06T10:56:34.6788474 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics James Bateman 0000-0003-4885-2539 1 Stefan Nimmrichter 2 Klaus Hornberger 3 Hendrik Ulbricht 4
title Near-field interferometry of a free-falling nanoparticle from a point-like source
spellingShingle Near-field interferometry of a free-falling nanoparticle from a point-like source
James Bateman
title_short Near-field interferometry of a free-falling nanoparticle from a point-like source
title_full Near-field interferometry of a free-falling nanoparticle from a point-like source
title_fullStr Near-field interferometry of a free-falling nanoparticle from a point-like source
title_full_unstemmed Near-field interferometry of a free-falling nanoparticle from a point-like source
title_sort Near-field interferometry of a free-falling nanoparticle from a point-like source
author_id_str_mv 3b46126aa511514414c6c42c9c6f0654
author_id_fullname_str_mv 3b46126aa511514414c6c42c9c6f0654_***_James Bateman
author James Bateman
author2 James Bateman
Stefan Nimmrichter
Klaus Hornberger
Hendrik Ulbricht
format Journal article
container_title Nature Communications
container_volume 5
container_start_page 4788
publishDate 2014
institution Swansea University
doi_str_mv 10.1038/ncomms5788
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 0
active_str 0
description Matter-wave interferometry performed with massive objects elucidates their wave nature and thus tests the quantum superposition principle at large scales. Whereas standard quantum theory places no limit on particle size, alternative, yet untested theories---conceived to explain the apparent quantum to classical transition---forbid macroscopic superpositions. Here we propose an interferometer with a levitated, optically cooled, and then free-falling silicon nanoparticle in the mass range of one million atomic mass units, delocalized over more than 150 nm. The scheme employs the near-field Talbot effect with a single standing-wave laser pulse as a phase grating. Our analysis, which accounts for all relevant sources of decoherence, indicates that this is a viable route towards macroscopic high-mass superpositions using available technology.
published_date 2014-09-02T03:34:58Z
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score 11.013082

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