High-resolution atom interferometers with suppressed diffraction phases

Brian Estey, Chenghui Yu, Holger Müller, Pei Chen Kuan, Shau Yu Lan

研究成果: Article同行評審

37 引文 斯高帕斯(Scopus)

摘要

We experimentally and theoretically study the diffraction phase of large-momentum transfer beam splitters in atom interferometers based on Bragg diffraction. We null the diffraction phase and increase the sensitivity of the interferometer by combining Bragg diffraction with Bloch oscillations. We demonstrate agreement between experiment and theory, and a 1500-fold reduction of the diffraction phase, limited by measurement noise. In addition to reduced systematic effects, our interferometer has high contrast with up to 4.4×106 radians of phase difference, and a resolution in the fine structure constant of δα/α=0.25ppb in 25 h of integration time.

原文English
文章編號083002
期刊Physical review letters
115
發行號8
DOIs
出版狀態Published - 2015 八月 20

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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