An atom optics experiment to investigate faster‐than‐light tunneling
Identifieur interne : 003018 ( Main/Exploration ); précédent : 003017; suivant : 003019An atom optics experiment to investigate faster‐than‐light tunneling
Auteurs : A. M. Steinberg [Canada] ; S. Myrskog [Canada] ; H. S. Moon ; H. A. Kim ; J. Fox ; J. B. KimSource :
- Annalen der Physik [ 0003-3804 ] ; 1998-12.
Abstract
We describe a series of atom optics experiments underway at Toronto for investigating tunnelling interaction times of various sorts. We begin by discussing some outstanding issues and confusions related to the question of whether or not superluminal tunnelling can be construed as true faster‐than‐light “signal propagation,” a question which we answer in the negative. We then argue that atom optics is an arena ideally suited for addressing a variety of remaining questions about how, where, and for how long a particle interacts with a tunnel barrier. We present recent results on a modified “delta‐kick cooling” scheme which we have used to prepare Rubidium atoms with one‐dimensional de Broglie wavelengths on the order of an optical wavelength, along with simulations showing that from these temperatures, we will be able to use acousto‐optically modulated dipole‐force barriers to velocity‐select ultracold atom samples ideal for future tunnelling experiments.
Url:
DOI: 10.1002/(SICI)1521-3889(199812)7:7/8<593::AID-ANDP593>3.0.CO;2-H
Affiliations:
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Kim</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:4598674CE38B19A9F41A51075CE7744FF8A128F4</idno><date when="1998" year="1998">1998</date><idno type="doi">10.1002/(SICI)1521-3889(199812)7:7/8<593::AID-ANDP593>3.0.CO;2-H</idno><idno type="url">https://api.istex.fr/document/4598674CE38B19A9F41A51075CE7744FF8A128F4/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">002120</idno><idno type="wicri:Area/Istex/Curation">001C89</idno><idno type="wicri:Area/Istex/Checkpoint">002808</idno><idno type="wicri:doubleKey">0003-3804:1998:Steinberg A:an:atom:optics</idno><idno type="wicri:Area/Main/Merge">003101</idno><idno type="wicri:Area/Main/Curation">003018</idno><idno type="wicri:Area/Main/Exploration">003018</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">An atom optics experiment to investigate faster‐than‐light tunneling</title><author><name sortKey="Steinberg, A M" sort="Steinberg, A M" uniqKey="Steinberg A" first="A. M." last="Steinberg">A. M. Steinberg</name><affiliation wicri:level="4"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Physics, University of Toronto, Toronto, ONT M5S 1A7</wicri:regionArea><orgName type="university">Université de Toronto</orgName><placeName><settlement type="city">Toronto</settlement><region type="state">Ontario</region></placeName></affiliation></author><author><name sortKey="Myrskog, S" sort="Myrskog, S" uniqKey="Myrskog S" first="S." last="Myrskog">S. Myrskog</name><affiliation wicri:level="4"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Physics, University of Toronto, Toronto, ONT M5S 1A7</wicri:regionArea><orgName type="university">Université de Toronto</orgName><placeName><settlement type="city">Toronto</settlement><region type="state">Ontario</region></placeName></affiliation></author><author><name sortKey="Moon, H S" sort="Moon, H S" uniqKey="Moon H" first="H. S." last="Moon">H. S. 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Phys.</title><idno type="ISSN">0003-3804</idno><idno type="eISSN">1521-3889</idno><imprint><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Leipzig</pubPlace><date type="published" when="1998-12">1998-12</date><biblScope unit="volume">7</biblScope><biblScope unit="issue">7‐8</biblScope><biblScope unit="page" from="593">593</biblScope><biblScope unit="page" to="601">601</biblScope></imprint><idno type="ISSN">0003-3804</idno></series><idno type="istex">4598674CE38B19A9F41A51075CE7744FF8A128F4</idno><idno type="DOI">10.1002/(SICI)1521-3889(199812)7:7/8<593::AID-ANDP593>3.0.CO;2-H</idno><idno type="ArticleID">ANDP593</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0003-3804</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We describe a series of atom optics experiments underway at Toronto for investigating tunnelling interaction times of various sorts. We begin by discussing some outstanding issues and confusions related to the question of whether or not superluminal tunnelling can be construed as true faster‐than‐light “signal propagation,” a question which we answer in the negative. We then argue that atom optics is an arena ideally suited for addressing a variety of remaining questions about how, where, and for how long a particle interacts with a tunnel barrier. We present recent results on a modified “delta‐kick cooling” scheme which we have used to prepare Rubidium atoms with one‐dimensional de Broglie wavelengths on the order of an optical wavelength, along with simulations showing that from these temperatures, we will be able to use acousto‐optically modulated dipole‐force barriers to velocity‐select ultracold atom samples ideal for future tunnelling experiments.</div></front></TEI><affiliations><list><country><li>Canada</li></country><region><li>Ontario</li></region><settlement><li>Toronto</li></settlement><orgName><li>Université de Toronto</li></orgName></list><tree><noCountry><name sortKey="Fox, J" sort="Fox, J" uniqKey="Fox J" first="J." last="Fox">J. Fox</name><name sortKey="Kim, H A" sort="Kim, H A" uniqKey="Kim H" first="H. A." last="Kim">H. A. Kim</name><name sortKey="Kim, J B" sort="Kim, J B" uniqKey="Kim J" first="J. B." last="Kim">J. B. Kim</name><name sortKey="Moon, H S" sort="Moon, H S" uniqKey="Moon H" first="H. S." last="Moon">H. S. Moon</name></noCountry><country name="Canada"><region name="Ontario"><name sortKey="Steinberg, A M" sort="Steinberg, A M" uniqKey="Steinberg A" first="A. M." last="Steinberg">A. M. Steinberg</name></region><name sortKey="Myrskog, S" sort="Myrskog, S" uniqKey="Myrskog S" first="S." last="Myrskog">S. Myrskog</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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