Constraints on spin-dependent exotic interactions between electrons at the nanometer scale

Pengshun Luo, Jihua Ding, Jianbo Wang, and Xiaofang Ren
Phys. Rev. D 96, 055028 – Published 18 September 2017

Abstract

New laboratory constraints are obtained on exotic interactions between electrons through pseudoscalar or pseudovector coupling by analyzing a recent measurement of the magnetic dipole-dipole interaction between two iron atoms at the nanometer scale. The analysis imposes the strongest bounds on the pseudovector coupling constant (gAe)2/4πc between electrons for exchange bosons heavier than 1 eV. Even with the counterpart of electron-positron interaction considered by assuming CPT invariance, the constraints are still the most stringent for bosons in the mass range from 1 eV to 20 eV. The constraints on the pseudoscalar coupling constant (gpe)2/4πc are only stronger than the limits derived from the trapped-strontium-ion experiment for exchange bosons heavier than 0.14 eV. Furthermore, a new experiment for more stringent constraints is proposed by measuring the interaction between one iron atom and multiple Holmium atoms.

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  • Received 13 June 2017

DOI:https://doi.org/10.1103/PhysRevD.96.055028

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Pengshun Luo*, Jihua Ding, Jianbo Wang, and Xiaofang Ren

  • MOE Key Laboratory of Fundamental Quantities Measurement, Hubei Key Laboratory of Gravitation and Quantum Physics, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China

  • *pluo2009@hust.edu.cn

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Vol. 96, Iss. 5 — 1 September 2017

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