Measurement of a helium tune-out frequency: an independent test of quantum electrodynamics-Reference-Cited by-同舟云学术

Measurement of a helium tune-out frequency: an independent test of quantum electrodynamics

Published:2022-04-08 Issue:6589 Volume:376 Page:199-203
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Henson B. M.¹^ORCID,Ross J. A.¹^ORCID,Thomas K. F.¹^ORCID,Kuhn C. N.²^ORCID,Shin D. K.¹,Hodgman S. S.¹^ORCID,Zhang Yong-Hui³^ORCID,Tang Li-Yan³^ORCID,Drake G. W. F.⁴^ORCID,Bondy A. T.⁴^ORCID,Truscott A. G.¹^ORCID,Baldwin K. G. H.¹^ORCID

Affiliation:

1. Department of Quantum Science and Technology, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia.

2. Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, VIC 3122, Australia.

3. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, People’s Republic of China.

4. Department of Physics, University of Windsor, Windsor, Ontario N9B 3P4, Canada.

Abstract

Despite quantum electrodynamics (QED) being one of the most stringently tested theories underpinning modern physics, recent precision atomic spectroscopy measurements have uncovered several small discrepancies between experiment and theory. One particularly powerful experimental observable that tests QED independently of traditional energy level measurements is the “tune-out” frequency, where the dynamic polarizability vanishes and the atom does not interact with applied laser light. In this work, we measure the tune-out frequency for the 2 3 S 1 state of helium between transitions to the 2 3 P and 3 3 P manifolds and compare it with new theoretical QED calculations. The experimentally determined value of 725,736,700(260) megahertz differs from theory [725,736,252(9) megahertz] by 1.7 times the measurement uncertainty and resolves both the QED contributions and retardation corrections.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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