A Many-Body Theory for Nearly-Free Electrons and Its Application to Annhilaion of Positrons in a Periodic Field
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概要
- 論文の詳細を見る
A many-body theory for nearly-free electrons has been constructed by introducing " Bloch-pair operators," α_k and β_k, which are related to free-particle operators through the transformation [numerical formula] where h is 2_π times a reciprocal lattice vector, and θ_h is the sign of the relevant Fourier component, υ_h, of the periodic field. This theory has been then applied to the annihilation of positrons in the periodic field. The interaction between a positron and a Bloch electron, has been, for the first time, taken into account through a few simplest diagrams. The result shows that a fairly sharp break of the angular-correlation curve occurs a the hexagonal-zone-face position in copper just as expected from the experiments previously made by the present author and his collaborator.
- 社団法人日本物理学会の論文
- 1970-12-05
著者
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Fujiwara Kunio
Institute For Solid State Physics University Of Tokyo
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Fujiwara Kunio
Institute Of Physui College Of Education University Of Tokyo
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- A Many-Body Theory for Nearly-Free Electrons and Its Application to Annhilaion of Positrons in a Periodic Field
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