Efficient production of large {sup 39}K Bose-Einstein condensates

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.063611· OSTI ID:21528934

Campbell, Robert L. D.; Smith, Robert P; Tammuz, Naaman; Beattie, Scott; Moulder, Stuart; Hadzibabic, Zoran ^[1]

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1. Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

We describe an experimental setup and the cooling procedure for producing {sup 39}K Bose-Einstein condensates of over 4x10{sup 5} atoms. Condensation is achieved via a combination of sympathetic cooling with {sup 87}Rb 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 {sup 39}K interactions from weak and attractive to strong and repulsive. In the same apparatus we create quasipure {sup 87}Rb condensates of over 8x10{sup 5} atoms.

• OSTI ID: 21528934
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063611; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
COOLING
DIPOLES
INTERACTIONS
POTASSIUM 39
RESONANCE
RUBIDIUM 87
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIGHT NUCLEI
MULTIPOLES
NUCLEI
ODD-EVEN NUCLEI
POTASSIUM ISOTOPES
RADIOISOTOPES
RUBIDIUM ISOTOPES
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES