Timekeeping with electron spin states in diamond

被引：61

作者：

Hodges, J. S. ^{[1
]}

Yao, N. Y. ^{[2
]}

Maclaurin, D. ^{[2
]}

Rastogi, C. ^{[3
]}

Lukin, M. D. ^{[2
]}

Englund, D. ^{[1
,3
]}

机构：

[1] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA

来源：

PHYSICAL REVIEW A | 2013年 / 87卷 / 03期

基金：

美国国家科学基金会;

关键词：

OPTICAL CLOCKS; SINGLE; READOUT;

D O I：

10.1103/PhysRevA.87.032118

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Frequency standards based on atomic states, such as Rb or Cs vapors, or single-trapped ions, are the most precise measures of time. Here we propose and analyze a precision oscillator approach based upon spins in a solid-state system, in particular, the nitrogen-vacancy defect in single-crystal diamond. We show that this system can have stability approaching portable atomic standards and is readily incorporable as a chip-scale device. Using a pulsed spin-echo technique, we anticipate an Allan deviation of sigma(y) = 10(-7)tau(-1/2) limited by thermally-induced strain variations; in the absence of such thermal fluctuations, the system is limited by spin dephasing and harbors an Allan deviation nearing similar to 10(-12)tau(-1/2). Potential improvements based upon advanced diamond material processing, temperature stabilization, and nanophotonic engineering are discussed. DOI: 10.1103/PhysRevA.87.032118

引用

页数：11

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