Bose-Einstein condensation of 85Rb by direct evaporation in an optical dipole trap

Abstract

We report a simple method for the creation of Bose-Einstein condensates of ${}^{85}$Rb by direct evaporation in a crossed optical dipole trap. The independent control of the trap frequencies and magnetic bias field afforded by the trapping scheme permits full control of the trapped atomic sample, enabling the collision parameters to be easily manipulated to achieve efficient evaporation in the vicinity of the 155 G Feshbach resonance. We produce nearly pure condensates of up to $4\times 10^4$ atoms and demonstrate the tunable nature of the atomic interactions.

arXiv comment5 pages, 4 figures

References in corpus (28)

• Theory of Bose-Einstein condensation in trapped gases
• Feshbach Resonances in Ultracold Gases
• Theory of ultracold Fermi gases
• A High Phase-Space-Density Gas of Polar Molecules
• Formation and Propagation of Matter Wave Soliton Trains
• Formation of a Matter-Wave Bright Soliton
• Production of cold molecules via magnetically tunable Feshbach resonances
• Stable 85Rb Bose-Einstein Condensates with Widely Tunable Interactions
• Dynamics of collapsing and exploding Bose-Einstein condensates
• Formation of bright matter-wave solitons during the collapse of Bose-Einstein condensates
• Controlled Collapse of a Bose-Einstein Condensate
• Quantum gas of rovibronic ground-state molecules in an optical lattice
• Three-body recombination at large scattering lengths in an ultracold atomic gas
• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Bragg spectroscopy of a strongly interacting 85Rb Bose-Einstein condensate
• Rapid production of ${}^{87}$Rb BECs in a combined magnetic and optical potential
• Magnetic Field Dependence of Ultracold Inelastic Collisions near a Feshbach Resonance
• Very high precision bound state spectroscopy near a ${}^{85}$Rb Feshbach resonance
• Creation and detection of a mesoscopic gas in a non-local quantum superposition
• Characterization of elastic scattering near a Feshbach resonance in rubidium 87
• Formation of dynamical Schrödinger cats in low-dimensional ultracold attractive Bose gases
• Realizing bright matter-wave soliton collisions with controlled relative phase
• Collisions of bright solitary matter waves
• Quantum reflection of bright matter-wave solitons
• Bosenova and three-body loss in a Rb-85 Bose-Einstein condensate
• Improved Characterization of Elastic Scattering Near a Feshbach Resonance in 85Rb
• Rb-85 tunable-interaction Bose-Einstein condensate machine
• Magnetic transport apparatus for the production of ultracold atomic gases in the vicinity of a dielectric surface

Cited by in corpus (10)

• Controlled formation and reflection of a bright solitary matter-wave
• Quantum reflection of bright solitary matter-waves from a narrow attractive potential
• Feshbach resonances in ultracold 85Rb
• Creating big time crystals with ultracold atoms
• A Bose-condensed, simultaneous dual species Mach-Zehnder atom interferometer
• Feshbach resonances, molecular bound states and prospects of ultracold molecule formation in mixtures of ultracold K and Cs
• Efficient production of an 87Rb F = 2, mF = 2 Bose-Einstein condensate in a hybrid trap
• Optical runaway evaporation for multi-BEC production
• Splitting and recombination of bright-solitary-matter waves
• Repeated output coupling of ultracold Feshbach molecules from a Cs BEC