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Physics Letters A

Conformal anomaly of some 2-d Z (n) models

Peter William

Published Jan 1, 1991• 1 citation
Publisher
DOI
10.1016/0375-9601(91)90633-j

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The critical O(n)\mathrm{O}(n)O(n) model on a finite honeycomb lattice is solved by the Bethe-Ansatz method. Amplitudes of the dominant finite-size corrections to part of the eigenspectrum are obtained analytically. A comparison with Cardy's predictions from the theory of conformal invariance leads to the exact results for the conformal anomaly and scaling dimensions.