Conformal anomaly and surface energy for Potts and Ashkin-Teller quantum chains
作者： C J Hamer , G R W Quispel , M T Batchelor
DOI: 10.1088/0305-4470/20/16/040
关键词: Chain (algebraic topology) 、 Conformal anomaly 、 Quantum 、 Exact results 、 Quantum mechanics 、 Surface energy 、 Physics
摘要: Exact equivalences between the critical quantum Potts and Ashkin-Teller chains a modified XXZ Heisenberg chain have recently been derived by Alcaraz et al (1987). The leading finite-size corrections to ground-state energies of these are using methods de Vega Woynarovich (1985) Eckle. results then obtained for conformal anomaly each model, surface energy in case free boundaries.
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