Collisional properties of sympathetically cooled {sup 39}K

Journal Article · Wed Feb 14 23:00:00 EST 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.022715· OSTI ID:20982129

De Sarlo, L; Maioli, P; Barontini, G ^[1]; Catani, J ^[1]; Minardi, F; Inguscio, M ^[1]

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1. LENS--European Laboratory for Non-Linear Spectroscopy and Dipartimento di Fisica, Universita di Firenze, via N. Carrara 1, I-50019 Sesto Fiorentino, Firenze (Italy)

We report experimental evidence of the sympathetic cooling of {sup 39}K with {sup 87}Rb down to 1 {mu}K, obtained in a tight-confining magnetic trap. This allowed us to perform a direct measurement of the elastic cross section of {sup 39}K below 50 {mu}K. The result obtained for the triplet scattering length, a{sub T}=-51(7) Bohr radii, agrees with previous results derived from photo association spectra and from Feshbach spectroscopy of {sup 40}K.

• OSTI ID: 20982129
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 75; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM-ATOM COLLISIONS
BOSE-EINSTEIN CONDENSATION
COOLING
CROSS SECTIONS
LASER RADIATION
PHOTON-ATOM COLLISIONS
POTASSIUM 39
POTASSIUM 40
RUBIDIUM 87
SCATTERING LENGTHS
SPECTRA
SPECTROSCOPY
TEMPERATURE RANGE 0000-0013 K
TRAPS
TRIPLETS