Spontaneous Magnetization in the Finite XXZ Spin Chain with Boundaries

Details Spontaneous Magnetization in the Finite XXZ Spin Chain with Boundaries Spontaneous Magnetization in the Finite XXZ Spin Chain with Boundaries

1998-07-28

arxiv.org/abs/hep-th/9807201v3

Physics

High Energy Physics

High Energy Physics - Theory

19pages, LaTeX2e file, minor corrections

Scientific paper

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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