Reduction of the cold collisions frequency shift in a multiple velocity fountain: A new proposal

被引：10

作者：

Levi, F ^{[1
]}

Godone, A

Lorini, L

机构：

[1] Ist Elettrotecn Nazl Galileo Ferraris, I-10135 Turin, Italy

[2] Politecn Torino, Dipartimento Elettrotecn, I-10135 Turin, Italy

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2001年 / 48卷 / 03期

关键词：

D O I：

10.1109/58.920721

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, we propose a new scheme for operating an atomic fountain frequency standard. A sequence of time-spaced balls of atoms, launched over nonoverlapping trajectories, makes possible a reduction of the atomic density and consequently the cold collision frequency shift by one order of magnitude without significant reduction of the useful signal and of the overall stability of the clock. The ultimate accuracy of a Cs fountain could be improved below the 10(-15) level currently achieved in operating clocks.

引用

页码：847 / 850

页数：4

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