Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2004-11-18
Prog.Theor.Phys. 113 (2005) 153-168
Physics
Nuclear Physics
Nuclear Theory
19 pages, No figure
Scientific paper
10.1143/PTP.113.153
After recapitulating the eigenvalue problem of the su(1,1)-algebra in the conventional form, the same problem is treated in an unconventional form, in which the eigenvalue is pure imaginary. Further, the coupling scheme of two su(1,1)-spins is discussed in the framework of two possibilities, in which certain new aspects appear. Finally, the coupling scheme developed in this paper is applied to a concrete example, which will serve boson realization of the so(4)- and the so(3,1)-algebra presented in the next paper.
Nishiyama Seiya
Providencia Constança
Providencia Joao da
Tsue Yasuhiko
Yamamura Masatoshi
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