Bloch walls and macroscopic string states in Bethe's solution of the Heisenberg ferromagnetic linear chain

被引：28

作者：

Dhar, A ^{[1
]}

Shastry, BS

机构：

[1] Raman Res Inst, Theoret Phys Grp, Bangalore 560080, Karnataka, India

[2] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

[3] Poornaprajna Inst, Bangalore, Karnataka, India

[4] JNCASR, Bangalore, Karnataka, India

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.85.2813

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a calculation of the lowest excited states of the Heisenberg ferromagnet in 1D for any wave vector. These turn out to be string solutions of Bethe's equations with a macroscopic number of particles in them. They are identified as generalized quantum Bloch wall states, and a simple physical picture is provided for the same.

引用

页码：2813 / 2816

页数：4

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