Equation Icon  HT [ϕ ] ⋅ 𝕄 𝕊 𝕄 †⋅ H [ϕ ] + HT [ϕ ] ⋅ 𝕄 ∗𝕊 𝕄T ⋅ H [ϕ ] SFij(Ω ) = ---1---------i----i-in--j------j---------i----j-in--i------j-, (i,j) = (1, 2) (269 ) 2|χexffx|2 HT [ϕi]RiR †jH [ϕj ]