Comment on the SLAC renormalization-group approach to the Ising chain in a transverse magnetic field
- 15 May 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 19 (10) , 3173-3175
- https://doi.org/10.1103/physrevd.19.3173
Abstract
It is shown that the critical parameters obtained for the Ising chain in a transverse field by using the SLAC naive renormalization-group approach can be easily and considerably improved. This is obtained after doing a convenient trick so that site and link terms of the Hamiltonian of the theory are treated in a symmetric way. In particular, the critical coupling constant and the critical thermal exponent obtained with our method are the exact known results of this model.Keywords
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