Precision atom interferometry

被引：67

作者：

Peters, A ^{[1
]}

Chung, KY ^{[1
]}

Young, B ^{[1
]}

Hensley, J ^{[1
]}

Chu, S ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1997年 / 355卷 / 1733期

关键词：

D O I：

10.1098/rsta.1997.0121

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The basic physical principles behind atom interferometers based on optical pulses of light are summarized. This method of atom interferometry is based on measurements in the time and frequency domain and is an inherently precise measurement technique. After a brief discussion of some of the important technical requirements for good fringe accuracy and visibility, rye describe an interferometer that has measured the acceleration of an atom due to gravity with a resolution better than one part in 10(10). The project that the absolute accuracy of our measurement will be of the order of a few parts in 10(9). The also describe an interferometer experiment that measures the recoil energy shift of an atom when it absorbs a photon. When combined with the value of the Rydberg constant and the mass ratios M-Cs/m(p) and m(p)/m(e), one can obtain a value for a, the fine structure constant. Currently, we have an experimental resolution Delta alpha/alpha similar to 10(-8) after two hours of integration time and are studying the systematic effects that affect the measurement.

引用

页码：2223 / 2233

页数：11

共 15 条

[1]

Berman P. R, 1997, ATOM INTERFEROMETRY

[2]

Feynman R., 2010, Quantum Mechanics and Path Integrals

[3] COHERENCE EFFECTS IN NEUTRON-DIFFRACTION AND GRAVITY EXPERIMENTS [J].