Three-loop calculations in the two-dimensional non-linear σ model
- 1 June 1978
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 11 (6), 1141-1150
- https://doi.org/10.1088/0305-4470/11/6/015
Abstract
The three-loop calculation of the non-linear sigma model is performed by the minimal subtraction method near two dimensions. As an application, the third-order expressions for the critical exponents in the (d-2) expansion are obtained.Keywords
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