Collisional properties of sympathetically cooled 39K

被引：19

作者：

De Sarlo, L.

Maioli, P.

Barontini, G.

Catani, J.

Minardi, F.

Inguscio, M.

机构：

[1] LENS, I-50019 Florence, Italy

[2] Univ Florence, Dipartimento Fis, I-50019 Florence, Italy

[3] Ist Nazl Fis Nucl, I-50019 Florence, Italy

[4] CNR, INFM, I-50019 Florence, Italy

来源：

PHYSICAL REVIEW A | 2007年 / 75卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.75.022715

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report experimental evidence of the sympathetic cooling of K-39 with Rb-87 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 K-39 below 50 mu K. The result obtained for the triplet scattering length, a(T)=-51(7) Bohr radii, agrees with previous results derived from photoassociation spectra and from Feshbach spectroscopy of K-40.

引用

页数：7

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