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Critical exponents from optimised renormalisation group flows
Within the exact renormalisation group, the scaling solutions for O(N) symmetric scalar field theories are studied to leading order in the derivative expansion. The Gaussian fixed point is examined for d>2 dimensions and arbitrary infrared regularisation. The Wilson-Fisher fixed point in d=3 is s...
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| Lenguaje: | eng |
| Publicado: |
2002
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| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(02)00186-4 http://cds.cern.ch/record/540117 |