Reduction of magnetic noise in atom chips by material optimization

被引：17

作者：

Dikovsky, V ^{[1
]}

Japha, Y

Henkel, C

Folman, R

机构：

[1] Ben Gurion Univ Negev, IL-84105 Beer Sheva, Israel

[2] Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany

来源：

EUROPEAN PHYSICAL JOURNAL D | 2005年 / 35卷 / 01期

关键词：

D O I：

10.1140/epjd/e2005-00203-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We discuss the influence of the material type in metal wires to the electromagnetic fluctuations in magnetic microtraps close to the surface of an atom chip. We show that significant reduction of the magnetic noise can be achieved by replacing the pure noble metal wires with their dilute alloys. The alloy composition provides an additional degree of freedom which enables a, controlled reduction of both magnetic noise and resistivity if the atom chip is cooled. In addition, we provide a careful re-analysis of the magnetically induced trap loss observed by Yu-Ju Lin et al. [Phys. Rev. Lett. 92 050404 (2004)] and find good agreement with an improved theory.

引用

页码：87 / 95

页数：9

共 36 条

[31] MAGNETIC-FIELD FLUCTUATIONS ARISING FROM THERMAL MOTION OF ELECTRIC CHARGE IN CONDUCTORS [J].