Fast production of large 23Na Bose-Einstein condensates in an optically plugged magnetic quadrupole trap

Abstract

We demonstrate a fast production of large 23Na Bose-Einstein condensates in an optically plugged, magnetic quadrupole trap. A single global minimum of the trapping potential is generated by slightly displacing the plug beam from the center of the quadrupole field. With a dark magneto-optical trap and a simple rf evaporation, our system produces a condensate with N = 10^7 atoms every 17 s. The Majorana loss rates and the resultant heating rates for various temperatures are measured with and without plugging. The average energy of a spin-flipped atom is almost linearly proportional to temperature and determined to be about 60% of the average energy of a trapped atom. We present a numerical study of the evaporation dynamics in a plugged linear trap.

6 pages, 6 figures

References in corpus (4)

• Many-Body Physics with Ultracold Gases
• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
• Rapid production of ${}^{87}$Rb BECs in a combined magnetic and optical potential

Cited by in corpus (19)

• Observation of Topologically Stable 2D Skyrmions in an Antiferromagnetic Spinor Bose-Einstein Condensate
• Collisional Dynamics of Half-Quantum Vortices in a Spinor Bose-Einstein Condensate
• Dual-species Bose-Einstein condensate of 41K and 87Rb in a hybrid trap
• Rubidium-87 Bose-Einstein condensate in an optically plugged quadrupole trap
• A Distributed GUI-based Computer Control System for Atomic Physics Experiments
• Probing Phase Fluctuations in a 2D Degenerate Bose Gas by Free Expansion
• Critical Vortex Shedding in a Strongly Interacting Fermionic Superfluid
• Overlapping Bose-Einstein Condensates of ${}^{23}$Na and ${}^{133}$Cs
• Fast production of Bose-Einstein condensates of metastable Helium
• A compact experimental machine for studying tunable Bose-Bose superfluid mixtures
• Ultracold mixtures of metastable He and Rb: scattering lengths from ab initio calculations and thermalization measurements
• Production of large Bose-Einstein condensates in a magnetic-shield-compatible hybrid trap
• Large-area ${}^{87}$Rb Bose-Einstein condensate in a clipped-Gaussian optical dipole trap
• Rapid production of large ${}^7$Li Bose-Einstein condensates using $D_1$ gray molasses
• Scaling behavior of density fluctuations in an expanding quasi-2D degenerate Bose gas
• Free expansion of quasi-2D Bose-Einstein condensates with quantized vortices
• Rotating a Bose-Einstein condensate by shaking an anharmonic axisymmetric magnetic potential
• Optical pumping effect in absorption imaging of F=1 atomic gases
• Efficient production of sodium Bose-Einstein condensates in a hybrid trap