Fundamental limits for coherent manipulation on atom chips

被引：64

作者：

Henkel, C ^{[1
]}

Krüger, P

Folman, R

Schmiedmayer, J

机构：

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

[2] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2003年 / 76卷 / 02期

关键词：

D O I：

10.1007/s00340-003-1112-z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The limitations for the coherent manipulation of neutral atoms with fabricated solid-state devices, so-called 'atom chips', are addressed. Specifically, we examine the dominant decoherence mechanism, which is due to the magnetic noise originating from the surface of the atom chip. It is shown that the contribution of fluctuations in the chip wires at the shot-noise level is not negligible. We estimate the coherence times and discuss ways to increase them. Our main conclusion is that future advances should allow for coherence times as long as 1 s, a few mum away from the surface.

引用

页码：173 / 182

页数：10

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