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Prog. Theor. Phys. Vol. 54 No. 5 (1975) pp. 1429-1439

Instability of Neutron Star Matter for Pion Condensation

Akira Suzuki, Yasuhiko Futami^* and Yasutaro Takahashi

Department of Physics, Faculty of Science, Science University of Tokyo, Tokyo
^*Department of Physics, Faculty of Science and Technology, Science University of Tokyo, Chiba

(Received March 31, 1975)

Abstract:

The instability of normal neutron star matter is investigated from the viewpoint of collective oscillations which are coupled with condensed pions in neutron matter. It is shown that there is no inconsistency between the instability conditions obtained by two apparently different approaches, i.e., the mean field method by Sawyer et al. and the Green's function method by Migdal. The double pole condition, which determines the instability threshold in the Green's function method, is interpreted in terms of collective motions.

URL : http://ptp.ipap.jp/link?PTP/54/1429/
DOI : 10.1143/PTP.54.1429

[ Full Text PDF : FREE ACCESS (838K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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Citing Article(s) :

1. Progress of Theoretical Physics Vol. 55 No. 5 (1976) pp. 1477-1487 :

   Pion Condensation in Neutron Star Matter

   Akira Suzuki

2. Progress of Theoretical Physics Vol. 57 No. 2 (1977) pp. 457-469 :

   π^- Condensation in Neutron Star Matter

   Yasuhiko Futami

3. Progress of Theoretical Physics Vol. 58 No. 6 (1977) pp. 1766-1774 :

   Neutrino Cooling of Neutron Stars in Pion-Condensed Phase

   Masayoshi Kiguchi

4. Progress of Theoretical Physics Vol. 58 No. 6 (1977) pp. 2006-2008 :

   Collective Mode of Nucleon System with π⁰ Condensate

   Akira Suzuki, Shinji Kurihara, Yasuhiko Futami and Yasutaro Takahashi

5. Progress of Theoretical Physics Vol. 59 No. 6 (1978) pp. 1933-1955 :

   Solidification and Pion Condensation in Nuclear Medium

   Tatsuyuki Takatsuka, Kyuichiro Tamiya, Toshitaka Tatsumi and Ryozo Tamagaki

6. Progress of Theoretical Physics Vol. 60 No. 6 (1978) pp. 1753-1769 :

   Possible Coexistence of Neutral and Charged Pion Condensations in Nuclear Medium

   Kyuichiro Tamiya and Ryozo Tamagaki

7. Progress of Theoretical Physics Supplement No.60 (1976) pp. 83-108 :

   Exchange and Renormalization Phenomena in Nuclei

   Yasuhiko Futami, Jun-Ichi Fujita and Hisao Ohtsubo

8. Progress of Theoretical Physics Supplement No.112 (1993) pp. 67-106 :

   Chapter III. Characteristic Aspects of Pion-Condensed Phases

   Tatsuyuki Takatsuka, Ryozo Tamagaki and Toshitaka Tatsumi

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