Guided transport of ultracold gases of rubidium up to a room-temperature dielectric surface

Abstract

We report on the guided transport of an atomic sample along an optical waveguide up to a room-temperature dielectric surface. The technique exploits a simple hybrid trap consisting of a single beam dipole trap positioned ~125 μm below the field zero of a magnetic quadrupole potential. Transportation is realised by applying a moderate bias field (<12 G) to displace the magnetic field zero along the axis of the dipole trap. We use the technique to demonstrate that atomic gases may be precisely positioned at controlled distances from the surface with negligible heating or loss. This work forms an excellent basis for future studies of atom-surface interactions using ultracold atomic gases.

13 pages, 5 figures

References in corpus (16)

• Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
• Matter-wave interferometry in a double well on an atom chip
• Measurement of the Temperature Dependence of the Casimir-Polder Force
• The Casimir effect within scattering theory
• Precision measurement of gravity with cold atoms in an optical lattice and comparison with a classical gravimeter
• Effect of the Casimir-Polder force on the collective oscillations of a trapped Bose-Einstein condensate
• Rapid production of ${}^{87}$Rb BECs in a combined magnetic and optical potential
• Two-dimensional Bose-Einstein condensate in an optical surface trap
• Limits on Nonstandard Forces in the Submicrometer Range
• Long Distance Transport of Ultracold Atoms using a 1D optical lattice
• Direct Measurement of intermediate-range Casimir-Polder potentials
• Evanescent-wave trapping and evaporative cooling of an atomic gas near two-dimensionality
• A quantum sensor for atom-surface interactions below 10 $\mu$m
• Rabi Interferometry and Sensitive Measurement of the Casimir-Polder Force with Ultra-Cold Gases
• Diffuse reflection of a Bose-Einstein condensate from a rough evanescent wave mirror
• Magnetic merging of ultracold atomic gases of ${}^{85}$Rb and ${}^{87}$Rb

Cited by in corpus (7)

• Controlled formation and reflection of a bright solitary matter-wave
• State labelling Wannier-Stark atomic interferometers
• Fast long-distance transport of cold cesium atoms
• Long range transport of ultra cold atoms in a far-detuned 1D optical lattice
• Magnetic transport apparatus for the production of ultracold atomic gases in the vicinity of a dielectric surface
• Evaporative cooling of cold atoms at surfaces
• Long distance optical conveyor-belt transport of ultracold ${}^{133}$Cs and ${}^{87}$Rb atoms