SCALAR KINKS

被引：24

作者：

DEVEGA, HJ ^{[1
]}

MEZINCESCU, L ^{[1
]}

NEOPMECHIE, RI ^{[1
]}

机构：

[1] UNIV MIAMI, DEPT PHYS, CORAL GABLES, FL 33124 USA

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 1994年 / 8卷 / 25-26期

关键词：

D O I：

10.1142/S0217979294001469

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We determine the excitations and S matrix of an integrable isotropic antiferromagnetic quantum spin chain of alternating spin 1/2 and spin 1. There are two types of gapless one-particle excitations: the usual spin 1/2 (''spinor'') kink, and a new spin 0 (''scalar'') kink. Remarkably, the scalar-spinor scattering is nontrivial, yet the spinor-spinor scattering is the same as for the Heisenberg chain. Moreover, there is no scalar-scalar scattering.

引用

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页码：3473 / 3485

页数：13

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