BOSONIC EXCITATIONS IN A CRYSTAL OF SINE-GORDON KINKS

被引：20

作者：

TAKAYAMA, K ^{[1
]}

OKA, M ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT PHYS,OH OKAYAMA,MEGURO KU,TOKYO 152,JAPAN

来源：

NUCLEAR PHYSICS A | 1993年 / 551卷 / 04期

关键词：

D O I：

10.1016/0375-9474(93)90270-8

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Properties of a one-dimensional periodic-lattice solution made of sine-Gordon kinks are studied analytically. The kink density can be varied arbitrarily by specifying a parameter of the model. Our main interest is on the density dependences of the kink-kink interaction and the dispersion relations of propagating mesons. We find that the range and the strength of the static meson-exchange potential are density independent, while propagating mesonic modes are modified by the medium significantly. Especially the mass of the propagating meson decreases as the kink density increases.

引用

页码：637 / 656

页数：20

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