Ising model with a transverse field in two dimensions: Phase diagram and critical properties from a real-space renormalization group
- 1 February 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 17 (3), 1429-1432
- https://doi.org/10.1103/physrevb.17.1429
Abstract
Critical indices, the critical line, and the crossover scaling function for the free energy are calculated for the two-dimensional Ising model with a transverse field using a quantum-mechanical version of the real-space renormalization group. The critical behavior as function of the transverse field at a small finite temperature changes from that of a three-dimensional to that of a two-dimensional Ising behavior, as the critical line is approached.Keywords
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