Conformal Invariance in Periodic Quantum Chains
نویسنده
چکیده
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. 05.70.Jk, 11.30.-j, 64.60.Fr Typeset using REVTEX
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