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Prog. Theor. Phys. Vol. 60 No. 2 (1978) pp. 442-455

[ Full Text PDF : FREE ACCESS (1153K) ]

Pion Condensed State in Nuclear Matter

Tetsuo Matsui, Kenji Sakai and Masaru Yasuno

Department of Physics, Nagoya University, Nagoya 464

(Received February 3, 1978)

Abstract:

The ground state structure of pion condensed nuclear matter is investigated in detail from the viewpoint that the pion condensation can be regarded as the appearence of static spin-isospin density wave (SIDW) or spin density wave (SDW) due to the attractive nature of OPEP. The problem is formulated as a one-body problem for a nucleon in a periodic mean field, the amplitude of which is taken as the order parameter characterizing the phase transition (self-consistent band theory…SCB). By means of SCB, the mechanism of the phase transition is shown as a second order phase transition and the characteristic features of the new ground state are obtained. It is found that in a course of the phase transition the nucleon system undergoes a drastic change in its structure, characterized particularly by the giant SIDW (SDW) and the strongly deformed Fermi sufrace.


URL : http://ptp.ipap.jp/link?PTP/60/442/
DOI : 10.1143/PTP.60.442

[ Full Text PDF : FREE ACCESS (1153K) ] Citation:

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  18. Progress of Theoretical Physics Vol. 79 No. 2 (1988) pp. 461-479 :
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  19. Progress of Theoretical Physics Vol. 80 No. 1 (1988) pp. 28-33 :
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  20. Progress of Theoretical Physics Vol. 83 No. 3 (1990) pp. 499-521 :
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  21. Progress of Theoretical Physics Vol. 88 No. 4 (1992) pp. 781-784 :
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  22. Progress of Theoretical Physics Vol. 89 No. 2 (1993) pp. 395-413 :
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  24. Progress of Theoretical Physics Supplement No.91 (1987) pp. 299-313 :
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