Spontaneous Magnetization in the Finite XXZ Spin Chain with Boundaries

Yasuhiro Fujii; Miki Wadati

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arXiv · hep-th/9807201

Spontaneous Magnetization in the Finite XXZ Spin Chain with Boundaries

Yasuhiro Fujii·Miki Wadati

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Abstract

The finite XXZ spin chain with boundaries is studied. We derive the transfer matrix from the q-difference equation discovered by Cherednik and construct its eigenstates by the vertex operator approach. We point out that the eigenstates with no magnetic fields have a symmetry called the turning symmetry. Making use of this symmetry we calculate the spontaneous magnetization in the thermodynamic limit, which is roughly twice as large as that in the half-infinite XXZ spin chain.

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Yasuhiro Fujii, Miki Wadati. 1998-09-09. Spontaneous Magnetization in the Finite XXZ Spin Chain with Boundaries. https://arxiv.org/abs/hep-th/9807201

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