Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2011-10-12
Phys. Rev. E 85, 026707 (2012)
Physics
Condensed Matter
Statistical Mechanics
21 pages, 7 figures. Added some minor corrections
Scientific paper
We present in detail the implementation of the Blaizot-M\'endez-Wschebor (BMW) approximation scheme of the nonperturbative renormalization group, which allows for the computation of the full momentum dependence of correlation functions. We discuss its signification and its relation with other schemes, in particular the derivative expansion. Quantitative results are presented for the testground of scalar O(N) theories. Besides critical exponents which are zero-momentum quantities, we compute in three dimensions in the whole momentum range the two-point function at criticality and, in the high temperature phase, the universal structure factor. In all cases, we find very good agreement with the best existing results.
Benitez Federico
Blaizot Jean Paul
Chate' Hugues
Delamotte Bertrand
Mendez-Galain Ramon
No associations
LandOfFree
Non-perturbative renormalization group preserving full-momentum dependence: implementation and quantitative evaluation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Non-perturbative renormalization group preserving full-momentum dependence: implementation and quantitative evaluation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-perturbative renormalization group preserving full-momentum dependence: implementation and quantitative evaluation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-634024