Dhar, Abhishek and Shastry, Sriram B (2000) Bloch Walls and Macroscopic String States in Bethe’s Solution of the Heisenberg Ferromagnetic Linear Chain. In: Physical Review Letters, 85 (13). pp. 2813-16.
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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: | Journal Article |
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Publication: | Physical Review Letters |
Publisher: | American Physical Society (APS) |
Additional Information: | Copyright for this article belongs to American Physical Society (APS) |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 22 Aug 2008 |
Last Modified: | 28 Sep 2010 07:23 |
URI: | http://eprints.iisc.ac.in/id/eprint/81 |
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