Some exact identities connecting one- and two-particle Green's functions in spin-orbit coupling systems
arXiv:cond-mat/0701227 · doi:10.1016/j.physleta.2007.05.043
Abstract
Some exact identities connecting the one- and two-particle Green's functions in the presence of spin-orbit coupling have been derived. These identities is similar to the usual Ward identity in the particle or charge transport theory and a satisfying spin transport theory in spin-orbit coupling system should also preserve these identities.
arXiv comment6 pages
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