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Atoms in a Radio-Frequency-Dressed Optical Lattice

Published

Author(s)

Ian B. Spielman, James V. Porto, William D. Phillips, Ben Brown, Patricia Lee, Nathan Lundblad

Abstract

We load cold atoms into an optical lattice dramatically reshaped by radio-frequency coupling of statedependent lattice potentials. This radio-frequency dressing changes the unit cell of the lattice at a subwavelength scale, such that its curvature and topology departs strongly from that of a simple sinusoidal lattice potential. Radio-frequency dressing has previously been performed at length scales from mm to tens of !m, but not at the single-optical-wavelength scale. At this length scale significant coupling between adiabatic potentials leads to nonadiabatic transitions, which we measure as a function of lattice depth and dressing amplitude. We also investigate the dressing by measuring changes in the momentum distribution of the dressed states.
Citation
Physical Review Letters

Keywords

Bose-Einstein Condensate, optical lattice

Citation

Spielman, I. , Porto, J. , Phillips, W. , Brown, B. , Lee, P. and Lundblad, N. (2008), Atoms in a Radio-Frequency-Dressed Optical Lattice, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925742 (Accessed June 19, 2024)

Issues

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Created April 18, 2008, Updated July 2, 2018