The currently accepted value for the upper limit on the photon rest mass comes from a rough estimate based on the solar wind method.We reconsider this method and present a more detailed analysis of the electromagnetic...The currently accepted value for the upper limit on the photon rest mass comes from a rough estimate based on the solar wind method.We reconsider this method and present a more detailed analysis of the electromagnetic fields in interplanetary space.The simple analytic expressions for the solar wind magnetic field,electric field and current are obtained with a finite photon mass.The upper limit on the photon mass is re-estimated as mγ<0.8×10^(-54) kg,which improves the current bound by up a factor of 2,and further confirms the reliability of the solar wind method.展开更多
基金Supported by the National Natural Science Foundation of China(U1604135 11402077)Science and Technology Program Project oh Henan Province(No.122300413209)
基金Partially supported by the National Natural Science Foundation of China(11275057).
文摘The currently accepted value for the upper limit on the photon rest mass comes from a rough estimate based on the solar wind method.We reconsider this method and present a more detailed analysis of the electromagnetic fields in interplanetary space.The simple analytic expressions for the solar wind magnetic field,electric field and current are obtained with a finite photon mass.The upper limit on the photon mass is re-estimated as mγ<0.8×10^(-54) kg,which improves the current bound by up a factor of 2,and further confirms the reliability of the solar wind method.