| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5494806 | Physics Letters B | 2017 | 6 Pages |
Abstract
The presence of an isotropic tricritical Lifshitz point for the O(N) scalar theory is investigated at large N in the improved Local Potential Approximation (LPAâ²) by means of the Functional Renormalization Group equations. At leading order, the non-trivial Lifshitz point is observed if the number of dimensions d is taken between d=4 and d=8, and the eigenvalue spectrum of the associated eigendirections is derived. At order 1/N of the LPAâ² the anomalous dimension ηN is computed and it is found to vanish both in d=4 and d=8. The dependence of our findings on the infrared regulator is discussed.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Dario Zappalà ,