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Eisele et al Laboratory Test of the Isotropy of Light Propagation at the 10-17 Level 2009

Eisele et al Laboratory Test of the Isotropy of Light Propagation at the 10-17 Level 2009

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时间：2019-06-03

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1、weekendingPRL103,090401(2009)PHYSICALREVIEWLETTERS28AUGUST2009LaboratoryTestoftheIsotropyofLightPropagationatthe1017LevelCh.Eisele,A.Yu.Nevsky,andS.SchillerInstitutfu¨rExperimentalphysik,Heinrich-Heine-Universita¨tDu¨sseldorf,40225Du¨sseldorf,Germany(Received13June2008;revisedmanuscriptrec

2、eived7August2009;published25August2009)WereportontheresultsofastronglyimprovedtestoflocalLorentzinvariance,consistingofasearchforananisotropyoftheresonancefrequenciesofelectromagneticcavities.Theapparatuscomprisestwoorthogonalstanding-waveopticalcavitiesinterrogatedbyalaser,whichwererotated

3、approximately175000timesoverthedurationof13months.Themeasurementsareinterpretedasasearchforananisotropyofthespeedoflight,withintheRobertson-Mansouri-Sexl(RMS)andthestandardmodelextension(SME)photonsectortesttheories.Wefindnoevidenceforanisotropyviolationata1uncertaintylevelof0.6partsin1017(

4、RMS)and2partsin1017forsevenofeightcoefficientsoftheSME.DOI:10.1103/PhysRevLett.103.090401PACSnumbers:03.30.+p,11.30.CpTheprincipleoflocalLorentzinvariance(LLI)statescomprisesapairoforthogonallyorientedopticalstanding-thatanyphysicalprocessinaninertiallaboratoryevolveswavecavitiesinterrogated

5、bylaserwaves[Fig.1(a)].Theindependentlyofthelatter’sstateofmotionandofitslaserwaves’frequenciesarekeptequaltothecavityfre-orientation.LLIisapostulateofthecurrenttheoriesofquencies1,2.Thedifference12(‘‘beatfre-thefundamentalinteractions,generalrelativityandthequency’’)isthequantityofint

6、erest—atestofisotropystandardmodel.However,theoreticalworktowardsauni-consistsinsearchingforachangeofthebeatfrequencyfiedtheoryofallforcessuggeststhatLLImayonlybeanwithchangingorientationinspace.Themaindesignaimapproximateprinciple.Thismotivatesexperimentaltestswasahighdimensionalstabilityof

7、thecavitiesandapre-ofLLIwithincreasedsensitivity.Recentexperimentsoncisereadoutofthecavities’frequencies1,2bythelaser.differentmicroscopicandmacroscopicsystems,aswellasSalientfeaturesoftheapparatus,showninFig.1(b),aretheastronomicaltestshavenotfoundany

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