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Conformal Invariance in Periodic Quantum Chains

Rudolf A. R"omer·Bill Sutherland
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Abstract

We show how conformal invariance predicts the functional form of two-point correlators in one-dimensional periodic quantum systems. Numerical evidence for this functional form in a wide class of models --- including long-ranged ones --- is given and it is shown how this may be used to significantly speed up calculations of critical exponents.

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Rudolf A. R"omer, Bill Sutherland. 1993-03-02. Conformal Invariance in Periodic Quantum Chains. https://arxiv.org/abs/cond-mat/9303004

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