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A Generalized Q-operator for U_q(\hat(sl_2)) Vertex Models

Marco Rossi·Robert Weston
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Abstract

In this paper, we construct a Q-operator as a trace of a representation of the universal R-matrix of $U_q(\hat{sl}_2)$ over an infinite-dimensional auxiliary space. This auxiliary space is a four-parameter generalization of the q-oscillator representations used previously. We derive generalized T-Q relations in which 3 of these parameters shift. After a suitable restriction of parameters, we give an explicit expression for the Q-operator of the 6-vertex model and show the connection with Baxter's expression for the central block of his corresponding operator.

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BibTeXRIS

Marco Rossi, Robert Weston. 2002-10-02. A Generalized Q-operator for U_q(\hat(sl_2)) Vertex Models. https://doi.org/10.1088/0305-4470%2F35%2F47%2F304

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