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Prog. Theor. Phys. Vol. 63 No. 2 (1980) pp. 469-485

Modification of Quasi-Particle Theory in Spherical Nuclei. I

— Method —

Munetake Hasegawa and Nobuo Kanesaki

Laboratory of Physics, Fukuoka Dental College, Fukuoka 814

(Received April 23, 1979)

Abstract:

A more useful number conserving basis which takes the place of the BCS quasi-particle basis is constructed. The nucleon operator is expressed in terms of two kinds of operators which represent J=0-coupled nucleon pairs and unpaired nucleons. The pairing states are treated by a linearization technique which makes use of the boson-like property of operators. The motion of unpaired nucleons is described by a modified quasi-particle. The method is applicable not only to the super-conducting phase but also to the normal one. It gives number conserving treatments of the pairing vibration and of the coupling with quadrupole phonon.

URL : http://ptp.ipap.jp/link?PTP/63/469/
DOI : 10.1143/PTP.63.469

[ Full Text PDF : FREE ACCESS (1189K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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Citing Article(s) :

1. Progress of Theoretical Physics Vol. 63 No. 6 (1980) pp. 1984-1996 :

   Modification of Quasi-Particle Theory in Spherical Nuclei. II

   Munetake Hasegawa and Nobuo Kanesaki

2. Progress of Theoretical Physics Vol. 64 No. 3 (1980) pp. 897-910 :

   Modification of Quasi-Particle Theory in Spherical Nuclei. III

   Munetake Hasegawa and Nobuo Kanesaki

3. Progress of Theoretical Physics Vol. 67 No. 3 (1982) pp. 852-865 :

   A Classical Theory of Pairing Rotation and Intrinsic Degrees of Freedom

   Masatoshi Yamamura and Atsushi Kuriyama

4. Progress of Theoretical Physics Vol. 68 No. 5 (1982) pp. 1608-1626 :

   A New Operator Representation of Collective States Composed of J=0 and J=2 Nucleon Pairs

   Munetake Hasegawa, Kazunari Kaneko and Nobuo Kanesaki

5. Progress of Theoretical Physics Vol. 127 No. 1 (2012) pp. 117-143 :

   Background of the su(2)-Algebraic Many-Fermion Models in the Boson Realization

   Yasuhiko Tsue, Constança Providência, João da Providência and Masatoshi Yamamura

6. Progress of Theoretical Physics Supplement No.71 (1981) pp. 1-47 :

   Chapter 1. Present Status of the Microscopic Study of Low-Lying Collective States in Spherical and Transitional Nuclei

   Toshio Marumori, Kenjiro Takada and Fumihiko Sakata

7. Progress of Theoretical Physics Supplement No.71 (1981) pp. 71-122 :

   Chapter 3. A New Microscopic Method for Describing the Elementary Modes of Excitation in the Intrinsic Subspace

   Kenjiro Takada, Kazunari Kaneko, Fumihiko Sakata and Shigeru Tazaki

8. Progress of Theoretical Physics Supplement No.93 (1987) pp. 1-175 :

   Time-Dependent Hartree-Fock Method and Its Extension

   Masatoshi Yamamura and Atsushi Kuriyama

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