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10
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10 ∫ M n = d 3 r ′e −ipr ′ H ′ψ n (r ′) , (1.16) khhl\_lkl\mxs_f ©ahehlhfm ijZ\bemª N_jfb ih dhlhjhfm fZljbqguc we_f_gl[_j_lkyf_`^mgZqZevgufbdhg_qgufkhklhygb_fψ f = e −ipr ′ \\b^_ iehkdhc\hegu\kemqZ_[hjgh\kdh]hijb[eb`_gby < kemqZ_ `_ [he__ lhqguo ijb[eb`_gbc ^he`gu bkihevah\Zlvky j_Zevgu_ \hegh\u_ nmgdpbb kbkl_fu – ZlhfZ fhe_dmeu beb l\_j^h]h l_eZ– \ dhlhjhc ijhbkoh^bl nhlhwfbkkby we_dljhgh\ ih^ ^_ckl\b_f d\Zglh\<wlhfkemqZ_lhqgucfZljbqgucwe_f_gl^Z_lky\ujZ`_gb_f ∫ M n = d 3 r ′ψ ∗j (r ′)H ′ψ n (r ′) , (1.17) ]^_ ψj – \hegh\Zy nmgdpby we_dljhgZ k iheh`bl_evghc wg_j]b_c j2/2m \ hdj_klghklb ZlhfZ fhe_dmeu beb l\_j^h]h l_eZ ^ey dhlhjhc hq_gv \Z`gufby\eyxlky]jZgbqgu_mkeh\by LZdbf h[jZahf ijh\_^_gguc ZgZeba k ihfhsvx nmgdpbb =jbgZ ihdZau\Z_l qlh nhlhwfbkkbx fh`gh jZkkfZljb\Zlv dZd ijhp_kk dhlhjuc hibku\Z_lkyahehlufijZ\behfN_jfb < l\_j^hf l_e_ \hegh\Zy nmgdpby dhg_qgh]h khklhygby ψj \ khhl\_lkl\bbklj_oklmi_gghcfh^_evxaZibku\Z_lky\\b^_ ψ j = ∑ Toi (k zj )e zjik z e ik|| ⋅r ′ , (1.18) j ]^_ kz b k|| - ghjfZevgZy b lZg]_gpbZevgZy khklZ\eyxsb_ \_dlhjZ k d ih\_joghklb l\_j^h]h l_eZ Loi – Zfieblm^Z i_j_oh^Z nhlhwe_dljhgh\ ba l\_j^h]hl_eZgZih\_joghklv
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