Control of interaction-induced dephasing of Bloch oscillations

M. Gustavsson, Elmar Haller, M.J. Mark, J.G. Danzl, G. Rojas-Kopeinig, H.-C. Nägerl

Research output: Contribution to journalArticle

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Abstract

We report on the control of interaction-induced dephasing of Bloch oscillations for an atomic Bose-Einstein condensate in an optical lattice. We quantify the dephasing in terms of the width of the quasimomentum distribution and measure its dependence on time for different interaction strengths which we control by means of a Feshbach resonance. For minimal interaction, the dephasing time is increased from a few to more than 20 thousand Bloch oscillation periods, allowing us to realize a BEC-based atom interferometer in the noninteracting limit.
LanguageEnglish
Article number080404
Number of pages4
JournalPhysical Review Letters
Volume100
Issue number8
DOIs
Publication statusPublished - 28 Feb 2008

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oscillations
interactions
Bose-Einstein condensates
interferometers
atoms

Keywords

  • Bloch oscillations
  • Bose-Einstein condensate
  • atom interferometer

Cite this

Gustavsson, M., Haller, E., Mark, M. J., Danzl, J. G., Rojas-Kopeinig, G., & Nägerl, H-C. (2008). Control of interaction-induced dephasing of Bloch oscillations. Physical Review Letters, 100(8), [080404]. https://doi.org/10.1103/PhysRevLett.100.080404
Gustavsson, M. ; Haller, Elmar ; Mark, M.J. ; Danzl, J.G. ; Rojas-Kopeinig, G. ; Nägerl, H.-C. / Control of interaction-induced dephasing of Bloch oscillations. In: Physical Review Letters. 2008 ; Vol. 100, No. 8.
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Gustavsson, M, Haller, E, Mark, MJ, Danzl, JG, Rojas-Kopeinig, G & Nägerl, H-C 2008, 'Control of interaction-induced dephasing of Bloch oscillations' Physical Review Letters, vol. 100, no. 8, 080404. https://doi.org/10.1103/PhysRevLett.100.080404

Control of interaction-induced dephasing of Bloch oscillations. / Gustavsson, M.; Haller, Elmar; Mark, M.J.; Danzl, J.G.; Rojas-Kopeinig, G.; Nägerl, H.-C.

In: Physical Review Letters, Vol. 100, No. 8, 080404, 28.02.2008.

Research output: Contribution to journalArticle

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AU - Gustavsson, M.

AU - Haller, Elmar

AU - Mark, M.J.

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AU - Nägerl, H.-C.

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KW - Bose-Einstein condensate

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Gustavsson M, Haller E, Mark MJ, Danzl JG, Rojas-Kopeinig G, Nägerl H-C. Control of interaction-induced dephasing of Bloch oscillations. Physical Review Letters. 2008 Feb 28;100(8). 080404. https://doi.org/10.1103/PhysRevLett.100.080404