Efficient Production of Large 39K Bose-Einstein Condensates

Efficient Production of Large 39K Bose-Einstein Condensates

Phys. Rev. A 82, 063611 (2010) We describe an experimental setup and the cooling procedure for producing 39K Bose-Einstein condensates of over 4x10^5 atoms. Condensation is achieved via a combination of sympathetic cooling with 87Rb in a quadrupole-Ioffe-configuration (QUIC) magnetic trap, and direc...

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Bibliographic Details
Main Authors: Campbell, Robert L. D, Smith, Robert P, Tammuz, Naaman, Beattie, Scott, Moulder, Stuart, Hadzibabic, Zoran
Format: Journal Article
Language:English
Published: 20-10-2010
Subjects:
Physics - Quantum Gases
Online Access:Get full text
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Summary:Phys. Rev. A 82, 063611 (2010) We describe an experimental setup and the cooling procedure for producing 39K Bose-Einstein condensates of over 4x10^5 atoms. Condensation is achieved via a combination of sympathetic cooling with 87Rb in a quadrupole-Ioffe-configuration (QUIC) magnetic trap, and direct evaporation in a large volume crossed optical dipole trap, where we exploit the broad Feshbach resonance at 402 G to tune the 39K interactions from weak and attractive to strong and repulsive. In the same apparatus we create quasi-pure 87Rb condensates of over 8x10^5 atoms.
DOI:10.48550/arxiv.1010.3739