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Ratchet effect for cold atoms in an optical lattice
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.ORCID iD: 0000-0003-1164-0831
2005 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 94, no 11Article in journal (Refereed) Published
Abstract [en]

The possibility of realizing a directed current for a quantum particle in a flashing asymmetric potential is investigated. It is found that quantum resonances, where the value of the effective Planck constant is equal to an integer or half-integer multiple of pi, give rise to a directed current. The effect should be readily observable in experiments.

Place, publisher, year, edition, pages
2005. Vol. 94, no 11
URN: urn:nbn:se:kth:diva-14635DOI: 10.1103/PhysRevLett.94.110603ISI: 000227923200009ScopusID: 2-s2.0-18044371651OAI: diva2:332676
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Wallin, Mats
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