Renormalisation group treatment of finite size scaling with ε expansion
- 21 April 1985
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 18 (6) , L319-L323
- https://doi.org/10.1088/0305-4470/18/6/011
Abstract
The use of renormalisation group techniques away from the critical point is shown to enable the calculation of finite size scaling corrections to scaling functions with epsilon -expansion methods. The authors consider the N-vector phi 4 theory for a layered geometry with periodic boundary conditions and evaluate the correlation function, susceptibility, correlation lengths and shift in the critical temperature to order epsilon .Keywords
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