English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We apply to the Random Field Ising Model at zero temperature (T= 0) theperturbative loop expansion around the Bethe solution. A comparison with thestandard epsilon-expansion is made, highlighting the key differences that makethe new expansion much more appropriate to correctly describe stronglydisordered systems, especially those controlled by a T = 0 RG fixed point. Thisnew loop expansion produces an effective theory with cubic vertices. We computethe one-loop corrections due to cubic vertices, finding new terms that areabsent in the epsilon-expansion. However, these new terms are subdominant withrespect to the standard, supersymmetric ones, therefore dimensional reductionis still valid at this order of the loop expansion.

New loop expansion for the Random Magnetic Field Ising Ferromagnets at zero temperature