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

Dhar, Abhishek ; Sriram Shastry, B. (2000) Bloch walls and macroscopic string states in Bethe's solution of the Heisenberg ferromagnetic linear chain Physical Review Letters, 85 (13). pp. 2813-2816. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v85/i13/p2813_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.85.2813

Abstract

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.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:51266
Deposited On:28 Jul 2011 07:21
Last Modified:18 May 2016 05:17

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