Lorentz-Symmetry Test at Planck-Scale Suppression with a Spin-Polarized 133Cs Cold Atom Clock

H. Pihan-Le Bars; C. Guerlin; R.-D. Lasseri; J.-P. Ebran; Q. G. Bailey; S. Bize; E. Khan; P. Wolf

doi:10.1109/FCS.2017.8088815

Lorentz-Symmetry Test at Planck-Scale Suppression with a Spin-Polarized 133Cs Cold Atom Clock

H. Pihan-Le Bars, C. Guerlin, R.-D. Lasseri, J.-P. Ebran, Q. G. Bailey, S. Bize, E. Khan, P. Wolf

Physics & Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present an improved model relating the frequency shift between 133Cs hyperfine Zeeman substates to the Lorentz-violating coefficients of the Standard-Model Extension (SME) framework. This model is based on a second order boost Lorentz transformation, which enables us to constrain the isotropic coefficient CTT. It also takes into account the nuclear structure, beyond the usual Schmidt model, extending the scope of the analysis from purely proton to both proton and neutron coefficients. Applying this advanced model to FO2 133Cs cold atom fountain clock data, previously analyzed in [P. Wolf et al., 2006], we improved by up to 13 orders of magnitude the present maximum sensitivities for laboratory tests, reaching the generally expected suppressions scale at which signatures of Lorentz violation could appear.

Original language	American English
Journal	2017 Joint Conference of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium (EFTF/IFCS)
DOIs	https://doi.org/10.1109/FCS.2017.8088815
State	Published - Oct 30 2017

Keywords

atomic clock
Lorentz invariance
Standard Model Extension

Disciplines

Astrophysics and Astronomy
Physics

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Pihan-Le Bars, H., Guerlin, C., Lasseri, R.-D., Ebran, J.-P., Bailey, Q. G., Bize, S., Khan, E., & Wolf, P. (2017). Lorentz-Symmetry Test at Planck-Scale Suppression with a Spin-Polarized 133Cs Cold Atom Clock. 2017 Joint Conference of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium (EFTF/IFCS). https://doi.org/10.1109/FCS.2017.8088815

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abstract = " We present an improved model relating the frequency shift between 133Cs hyperfine Zeeman substates to the Lorentz-violating coefficients of the Standard-Model Extension (SME) framework. This model is based on a second order boost Lorentz transformation, which enables us to constrain the isotropic coefficient CTT. It also takes into account the nuclear structure, beyond the usual Schmidt model, extending the scope of the analysis from purely proton to both proton and neutron coefficients. Applying this advanced model to FO2 133Cs cold atom fountain clock data, previously analyzed in [P. Wolf et al., 2006], we improved by up to 13 orders of magnitude the present maximum sensitivities for laboratory tests, reaching the generally expected suppressions scale at which signatures of Lorentz violation could appear.",

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AU - Pihan-Le Bars, H.

AU - Guerlin, C.

AU - Lasseri, R.-D.

AU - Ebran, J.-P.

AU - Bailey, Q. G.

AU - Bize, S.

AU - Khan, E.

AU - Wolf, P.

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AB - We present an improved model relating the frequency shift between 133Cs hyperfine Zeeman substates to the Lorentz-violating coefficients of the Standard-Model Extension (SME) framework. This model is based on a second order boost Lorentz transformation, which enables us to constrain the isotropic coefficient CTT. It also takes into account the nuclear structure, beyond the usual Schmidt model, extending the scope of the analysis from purely proton to both proton and neutron coefficients. Applying this advanced model to FO2 133Cs cold atom fountain clock data, previously analyzed in [P. Wolf et al., 2006], we improved by up to 13 orders of magnitude the present maximum sensitivities for laboratory tests, reaching the generally expected suppressions scale at which signatures of Lorentz violation could appear.

KW - atomic clock

KW - Lorentz invariance

KW - Standard Model Extension

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Lorentz-Symmetry Test at Planck-Scale Suppression with a Spin-Polarized 133Cs Cold Atom Clock

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