Optimization of field-dependent nonperturbative renormalization group flows
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Laboratoire de Physique Theorique et Hautes Energies, Universites Paris VI-Pierre et Marie Curie, Paris VII-Denis Diderot, 2 place Jussieu, 75251 Paris cedex 05 (France)
We investigate the influence of the momentum cutoff function on the field-dependent nonperturbative renormalization group flows for the three-dimensional Ising model, up to the second order of the derivative expansion. We show that, even when dealing with the full functional dependence of the renormalization functions, the accuracy of the critical exponents can be simply optimized, through the principle of minimal sensitivity, which yields {nu}=0.628 and {eta}=0.044.
- OSTI ID:
- 20665014
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 1 Vol. 71; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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