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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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|
|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|
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