Atoms in a Radio-Frequency-Dressed Optical Lattice
Ian B. Spielman, James V. Porto, William D. Phillips, Ben Brown, Patricia Lee, Nathan Lundblad
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.
, Porto, J.
, Phillips, W.
, Brown, B.
, Lee, P.
and Lundblad, N.
Atoms in a Radio-Frequency-Dressed Optical Lattice, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925742
(Accessed December 10, 2023)