Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atoms

被引：32

作者：

Ridinger, A. ^{[1
]}

Chaudhuri, S. ^{[1
]}

Salez, T. ^{[1
]}

Eismann, U. ^{[1
]}

Fernandes, D. R. ^{[1
]}

Magalhaes, K. ^{[2
]}

Wilkowski, D. ^{[3
,4
]}

Salomon, C. ^{[1
]}

Chevy, F. ^{[1
]}

机构：

[1] Univ Paris 06, Ecole Normale Super, Lab Kastler Brossel, CNRS, F-75231 Paris 05, France

[2] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

[3] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore

[4] Univ Nice Sophia Antipolis, Inst Non Lineaire Nice, CNRS, F-06560 Valbonne, France

来源：

EUROPEAN PHYSICAL JOURNAL D | 2011年 / 65卷 / 1-2期

关键词：

LITHIUM; STATES;

D O I：

10.1140/epjd/e2011-20069-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the design, implementation and characterization of a dual-species magneto-optical trap (MOT) for fermionic Li-6 and K-40 atoms with large atom numbers. The MOT simultaneously contains 5.2 x 10(9) Li-6-atoms and 8.0 x 10(9) K-40-atoms, which are continuously loaded by a Zeeman slower for Li-6 and a 2D-MOT for K-40. The atom sources induce capture rates of 1.2 x 10(9) Li-6-atoms/s and 1.4 x 10(9) K-40-atoms/s. Trap losses due to light-induced interspecies collisions of similar to 65% were observed and could be minimized to similar to 10% by using low magnetic field gradients and low light powers in the repumping light of both atomic species. The described system represents the starting point for the production of a large-atom number quantum degenerate Fermi-Fermi mixture.

引用

页码：223 / 242

页数：20

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