On, the gauge invariance of the transition probability of a charged particle in electromagnetic field

This paper suggests a principle to find a unitary operator U which transforms non-physical quantity, zero-potential Hamiltonian H-0, into true physical quantity U H0Udagger for a charged particle in classical electromagnetic field, and puts forward a unified form of constructing gauge-independent transition probabilities in this case. Different methods correspond to different unitary operators which satisfy the above-mentioned principle.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000178323800003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Physics, MultidisciplinarySCI(E)中国科学引文数据库(CSCD)2ARTICLE3267-2703