Test of Lorentz Invariance in Electrodynamics Using Rotating Cryogenic Sapphire Microwave Oscillators

Paul Stanwix; Michael Tobar; P. Wolf; Mohamad Susli; Clayton Locke; Eugene Ivanov; John Winterflood; Frank Van Kann

doi:10.1103/PhysRevLett.95.040404

Test of Lorentz Invariance in Electrodynamics Using Rotating Cryogenic Sapphire Microwave Oscillators

Paul Stanwix, Michael Tobar, P. Wolf, Mohamad Susli, Clayton Locke, Eugene Ivanov, John Winterflood, Frank Van Kann

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

126 Citations (Scopus)

Abstract

We present the first results from a rotating Michelson-Morley experiment that uses two orthogonally orientated cryogenic sapphire resonator oscillators operating in whispering gallery modes near 10 GHz. The experiment is used to test for violations of Lorentz invariance in the framework of the photon sector of the standard model extension (SME), as well as the isotropy term of the Robertson-Mansouri-Sexl (RMS) framework. In the SME we set a new bound on the previously unmeasured <(kappa)over tilde >(ZZ)(e-) component of 2.1(5.7) x 10(-14), and set more stringent bounds by up to a factor of 7 on seven other components. In the RMS a more stringent bound of -0.9(2.0) x 10(-10) on the isotropy parameter, P-MM = delta - beta + 1/2 is set, which is more than a factor of 7 improvement.

Original language	English
Pages (from-to)	040404-1-040404-4
Journal	Physical Review Letters
Volume	95
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.95.040404
Publication status	Published - 2005

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title = "Test of Lorentz Invariance in Electrodynamics Using Rotating Cryogenic Sapphire Microwave Oscillators",

abstract = "We present the first results from a rotating Michelson-Morley experiment that uses two orthogonally orientated cryogenic sapphire resonator oscillators operating in whispering gallery modes near 10 GHz. The experiment is used to test for violations of Lorentz invariance in the framework of the photon sector of the standard model extension (SME), as well as the isotropy term of the Robertson-Mansouri-Sexl (RMS) framework. In the SME we set a new bound on the previously unmeasured <(kappa)over tilde >(ZZ)(e-) component of 2.1(5.7) x 10(-14), and set more stringent bounds by up to a factor of 7 on seven other components. In the RMS a more stringent bound of -0.9(2.0) x 10(-10) on the isotropy parameter, P-MM = delta - beta + 1/2 is set, which is more than a factor of 7 improvement.",

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T1 - Test of Lorentz Invariance in Electrodynamics Using Rotating Cryogenic Sapphire Microwave Oscillators

AU - Stanwix, Paul

AU - Tobar, Michael

AU - Wolf, P.

AU - Susli, Mohamad

AU - Locke, Clayton

AU - Ivanov, Eugene

AU - Winterflood, John

AU - Van Kann, Frank

PY - 2005

Y1 - 2005

N2 - We present the first results from a rotating Michelson-Morley experiment that uses two orthogonally orientated cryogenic sapphire resonator oscillators operating in whispering gallery modes near 10 GHz. The experiment is used to test for violations of Lorentz invariance in the framework of the photon sector of the standard model extension (SME), as well as the isotropy term of the Robertson-Mansouri-Sexl (RMS) framework. In the SME we set a new bound on the previously unmeasured <(kappa)over tilde >(ZZ)(e-) component of 2.1(5.7) x 10(-14), and set more stringent bounds by up to a factor of 7 on seven other components. In the RMS a more stringent bound of -0.9(2.0) x 10(-10) on the isotropy parameter, P-MM = delta - beta + 1/2 is set, which is more than a factor of 7 improvement.

AB - We present the first results from a rotating Michelson-Morley experiment that uses two orthogonally orientated cryogenic sapphire resonator oscillators operating in whispering gallery modes near 10 GHz. The experiment is used to test for violations of Lorentz invariance in the framework of the photon sector of the standard model extension (SME), as well as the isotropy term of the Robertson-Mansouri-Sexl (RMS) framework. In the SME we set a new bound on the previously unmeasured <(kappa)over tilde >(ZZ)(e-) component of 2.1(5.7) x 10(-14), and set more stringent bounds by up to a factor of 7 on seven other components. In the RMS a more stringent bound of -0.9(2.0) x 10(-10) on the isotropy parameter, P-MM = delta - beta + 1/2 is set, which is more than a factor of 7 improvement.

U2 - 10.1103/PhysRevLett.95.040404

DO - 10.1103/PhysRevLett.95.040404

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SP - 040404-1-040404-4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

ER -

Test of Lorentz Invariance in Electrodynamics Using Rotating Cryogenic Sapphire Microwave Oscillators

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