PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Monopole-like configurations in the O(3) spin model at the upper critical dimension
A. Smecca* and M. Panero
Full text: pdf
Pre-published on: May 16, 2022
Published on:
We present a high-precision Monte Carlo study of the O(3) spin theory on the lattice in D=4 dimensions. This model exhibits interesting dynamical features, in particular in the broken-symmetry phase, where suitable boundary conditions can be used to enforce monopole-like topological excitations. We investigate the Euclidean time propagation and the features of these excitations close to the critical point, where our numerical results show an excellent quantitative agreement with analytic predictions derived from purely quantum-field-theoretical tools by G. Delfino. We conclude by commenting on the implications of our findings for a conjectured violation of Derrick’s theorem at the quantum level and on the consequences in various areas of physics, ranging from condensed matter to astro-particle physics.
DOI: https://doi.org/10.22323/1.396.0121
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.