Ratchet effect for cold atoms in an optical lattice
2005 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 94, no 11Article in journal (Refereed) Published
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
IdentifiersURN: urn:nbn:se:kth:diva-14635DOI: 10.1103/PhysRevLett.94.110603ISI: 000227923200009ScopusID: 2-s2.0-18044371651OAI: oai:DiVA.org:kth-14635DiVA: diva2:332676
QC 201005252010-08-052010-08-05Bibliographically approved