Surprises in O (N) Models: Nonperturbative Fixed Points, Large N Limits, and Multicriticality

Shunsuke Yabunaka; Bertrand Delamotte

doi:10.1103/PhysRevLett.119.191602

Surprises in O (N) Models: Nonperturbative Fixed Points, Large N Limits, and Multicriticality

Shunsuke Yabunaka, Bertrand Delamotte

Condensed Matter Physics

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

We find that the multicritical fixed point structure of the O(N) models is much more complicated than widely believed. In particular, we find new nonperturbative fixed points in three dimensions (d=3) as well as at N=. These fixed points come together with an intricate double-valued structure when they are considered as functions of d and N. Many features found for the O(N) models are shared by the O(N) - O(2) models relevant to frustrated magnetic systems.

Original language	English
Article number	191602
Journal	Physical Review Letters
Volume	119
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.119.191602
Publication status	Published - Nov 7 2017

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

Yabunaka, S., & Delamotte, B. (2017). Surprises in O (N) Models: Nonperturbative Fixed Points, Large N Limits, and Multicriticality. Physical Review Letters, 119(19), [191602]. https://doi.org/10.1103/PhysRevLett.119.191602

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Access to Document

10.1103/PhysRevLett.119.191602