重離子碰撞中具有電導(dǎo)率和手性磁導(dǎo)率的電磁場Electromagneticfieldswithelectricandchiralmagneticconductivitiesinheavy-ioncollisionsIntroductionandthemotivationTheframeworkofsolvingthefields

AnalyticalandnumericalresultsSummaryOutlineThestrongeststeadymagneticfieldsachievedsofarinlaboratory

Themagneticfieldexistedinthecompactstars

Heavyioncollisionsproducetheeverstrongestmagneticfieldintheuniverse

TheEarth’smagneticfield(weak)0.6GMagneticstrengthinHICEstimationofEMfieldinHIC

ElectricfieldinC.M.SframeLorentztransformationtoboostintotheLabframe

Coulomb’sLawScalinglaw

Kharzeev,McLerran,Warringa(2008),Skokov(2009)Deng&Huang

(2012)

StrongInteractionChargeseparationeffectinHICSTARPRL103,251601(2009)ALICEPRL110,012301(2013)However,theinterpretationofchiralmagneticeffectisunderhotdebateduetothebackgroundcontributionoftheellipticflow.EMfieldsofchargedparticleinvacuumLienard-Wiechertpotentials(1)(2)Retardedpotential

Magneticfieldfallsrapidly

EMfieldsofchargedparticleinmediumInconductingmediumwithconstantσ

EMfieldscanlastlonger

MclerranandSkokov,2013;Tuchin,2014WestartfromthetheOhmcurrentandtheCMEcurrentMaxwell-Chen-Simonsequations

representstherelatedfieldsrepresentsthesourcetermGreenfunctionmethodForconvenience,wetransformintothemomentumspaceFouriertransformThematrixform

ofeq.(3)inthemomentumspace(4)MasamatrixWewillobtaintheformsolutionofthefieldInMomentumspaceCoordinate

SpaceMomentumspace

Chargecurrent

ChargedensityInmomentumspace,themagneticfieldreadsachargedparticlemovingalongthezdirectionInMomentumspaceIntegraloverωismorecomplicatedMagneticfield:algebraicformUmutGursoy,KrishnaRajagopal(2014)Electricfield:algebraicformEMfieldofmovingparticleThegeometryillustrationTheparameterb=4,PandQpointsare(6,0,0)and(0,6,0),respectively.EMfieldinnucleicollisions

givetheconfigurationofthechargedparticlesTheUrQMDModelisusedtocalculatetheinitialstateofaheavyioncollisionforthehydrodynamicalevolutionS.A.Bassetal.,Prog.Part.Nucl.Phys.41,255(1998)M.Bleicheretal.,J.Phys.G25,1859(1999)UrQMDmodel

LifetimeoftheEMfieldThecontourplotsfortheelectricandmagneticfieldEMfieldinnucleicollisions

EMfieldinnucleicollisionsEMfieldinnucleicolli