Note on Boson Expansion and Boson Coherent State for the su(2)-Spin System
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概要
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With the aim of obtaining the classical counterpart of the su(2)-spin system and its quantal fluctuations in the frame of the boson coherent state, the Holstein-Orimakoff and Marumori-Yamamura-Tokunaga bosom expansions are investigated. The starteing point is found in the Schwinger boson representation for the su(2)-spin system and its reformation. Derac's canonical theory for constraint systems is also applied to the su(2)-spin system. In conclusion, the latter boson expansion is found to be superior to the former with respect to the use of the boson coherent state.
- 理論物理学刊行会の論文
- 1996-01-25
著者
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Kuriyama Atsushi
Faculty Of Engineering Kansai University
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Yamamura Masatoshi
Department Of Pure And Applied Physics Faculty Of Engineering Science Kansai University
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Tsue Yasuhiko
Department Of Physics Kyoto University
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Kuriyama A
Faculty Of Engineering Kansai University
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Yamamura Masatoshi
Faculty Of Engineering Kansai University
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PROVIDENCIA joao
Faculty of Engineering, Kansai University
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YAMAMURA Masatoshi
Faculty of Engineering ,Kansai University
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da Providencia
Faculty of Engineering, Kansai University
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TSUE Yasuhiko
Departamento de Fisica,Universidade de Coimbra
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