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Model of Persistent Breaking of Discrete Symmetry.
- Source :
-
Physical Review Letters . 1/7/2022, Vol. 128 Issue 1, p1-1. 1p. - Publication Year :
- 2022
-
Abstract
- We show there exist UV-complete field-theoretic models in general dimension, including 2+1, with the spontaneous breaking of a global symmetry, which persists to the arbitrarily high temperatures. Our example is a conformal vector model with the O(N)×Z2 symmetry at zero temperature. Using conformal perturbation theory we establish Z2 symmetry is broken at finite temperature for N>17. Similar to recent constructions of [N. Chai et al., Phys. Rev. D 102, 065014 (2020)., N. Chai et al., Phys. Rev. Lett. 125, 131603 (2020).], in the infinite N limit our model has a nontrivial conformal manifold, a moduli space of vacua, which gets deformed at finite temperature. Furthermore, in this regime the model admits a persistent breaking of O(N) in 2+1 dimensions, therefore providing another example where the Coleman-Hohenberg-Mermin-Wagner theorem can be bypassed. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DISCRETE symmetries
*SYMMETRY breaking
*PERTURBATION theory
*HIGH temperatures
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 128
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 154576048
- Full Text :
- https://doi.org/10.1103/PhysRevLett.128.011601