Electric field noise above surfaces: A model for heating-rate scaling law in ion traps

被引：48

作者：

Dubessy, R. ^{[1
]}

Coudreau, T.

Guidoni, L.

机构：

[1] Univ Paris Diderot, Lab Mat & Phenomenes Quant, F-75013 Paris, France

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.80.031402

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a model for the scaling laws of the electric field noise spectral density as a function of the distance d above a conducting surface. Our analytical approach models the patch potentials by introducing a correlation length zeta of the electric potential on the surface. The predicted scaling laws are in excellent agreement with two different classes of experiments (cold trapped ions and cantilevers), for which the d parameter differs by four orders of magnitude. According to this model, heating rate in miniature ion traps could be greatly reduced by proper material engineering.

引用

页数：4

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