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Prog. Theor. Phys. Vol. 63 No. 4 (1980) pp. 1252-1267

[ Full Text PDF : FREE ACCESS (1126K) ]

Alternating-Layer-Spin Structure Realized in the σ-Model

Toshitaka Tatsumi

Department of Physics, Kyoto University, Kyoto 606

(Received August 20, 1979)

Abstract:

Characteristic features of the pion-condensed phase are studied in the σ-model by introducing new variables. For the neutral pion-condensed phase the pion field is defined as a chiral angle and the coupled field equations are derived in the mean-field approximation. The structure of the nucleon system in the condensed phase is investigated on the basis of these equations. It is shown that the Alternating-Layer-Spin structure is surely realized in the σ-model. The validity of Dautry and Nyman's model is also discussed.


URL : http://ptp.ipap.jp/link?PTP/63/1252/
DOI : 10.1143/PTP.63.1252

[ Full Text PDF : FREE ACCESS (1126K) ] Citation:

References:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 64 No. 6 (1980) pp. 2107-2127 :
    Neutron 3P2-Dominant Superfluidity with Two-Dimensional Character under Well-Developed π0 Condensation
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  2. Progress of Theoretical Physics Vol. 65 No. 2 (1981) pp. 613-631 :
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  3. Progress of Theoretical Physics Vol. 65 No. 6 (1981) pp. 1941-1949 :
    Excitations of the Charged Pion Field in Dense Nuclear Medium with a Neutral Condensate
    M. C. Ruivo and L. S. Ferreira
  4. Progress of Theoretical Physics Vol. 66 No. 3 (1981) pp. 948-963 :
    Reaction Matrix Calculations in Neutron Matter with Alternating-Layer-Spin Structure under π0 Condensation. I
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  5. Progress of Theoretical Physics Vol. 66 No. 6 (1981) pp. 2161-2172 :
    Collective Modes of the π0 Condensed Phase in Pure Neutron Matter
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  6. Progress of Theoretical Physics Vol. 67 No. 1 (1982) pp. 254-270 :
    Study on Characteristics of π0-Condensate in Neutron Matter
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  7. Progress of Theoretical Physics Vol. 68 No. 4 (1982) pp. 1231-1247 :
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  8. Progress of Theoretical Physics Vol. 72 No. 2 (1984) pp. 252-265 :
    Proton Mixing in π0-Condensed Phase of Neutron Star Matter
    Tatsuyuki Takatsuka
  9. Progress of Theoretical Physics Vol. 75 No. 2 (1986) pp. 301-318 :
    Effects Finite Density on Chiral Domain-Wall in Neutron and Quark Matter
    Tetsuo Hatsuda
  10. Progress of Theoretical Physics Vol. 78 No. 6 (1987) pp. 1405-1427 :
    On the Existence of Combined Condensation of Neutral and Charged Pions in Neutron Matter
    Takumi Muto and Toshitaka Tatsumi
  11. Progress of Theoretical Physics Vol. 80 No. 1 (1988) pp. 22-27 :
    K-on Condensation and Cooling of Neutron Stars
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  12. Progress of Theoretical Physics Vol. 80 No. 1 (1988) pp. 28-33 :
    On the Cooling of Neutron Stars under the Neutral Pion Condensed Phase
    Takumi Muto and Toshitaka Tatsumi
  13. Progress of Theoretical Physics Vol. 105 No. 3 (2001) pp. 437-448 :
    Solution of the Dirac Equation with an Axial Vector Current in the Chiral SU(2)⊗SU(2) Model
    Koichi Takahashi and Toshitaka Tatsumi
  14. Progress of Theoretical Physics Supplement No.91 (1987) pp. 299-313 :
    Pion Condensations and Neutron Star Phenomena
    Toshitaka Tatsumi
  15. Progress of Theoretical Physics Supplement No.112 (1993) pp. 1-25 :
    Chapter I. Overview
    Ryozo Tamagaki
  16. Progress of Theoretical Physics Supplement No.112 (1993) pp. 123-157 :
    Chapter V. Toward Realistic Treatment of Neutral Pion-Condensed State
    Teiji Kunihiro, Tatsuyuki Takatsuka, Ryozo Tamagaki and Toshitaka Tatsumi
  17. Progress of Theoretical Physics Supplement No.112 (1993) pp. 159-196 :
    Chapter VI. A Chiral Symmetry Approach to Meson Condensations
    Takumi Muto, Ryozo Tamagaki and Toshitaka Tatsumi

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