PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Poster
Infrared physics of the $\mathrm{SU}(2)$ Georgi-Glashow crossover transition
L. Niemi, K. Rummukainen, R. Seppä and D. Weir*
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Pre-published on: May 16, 2022
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We perform a lattice study of the phase transition in the $\mathrm{SU}(2)$ Georgi-Glashow model in three dimensions, where the gauge symmetry is broken to $\mathrm{U}(1)$ by the Higgs mechanism and a photon-like state appears. Due to condensation of monopoles the photon acquires a mass, which depends on the number density of the monopoles. We show that the monopole density can be renormalised on the lattice using gradient flow. Our preliminary results suggest that Polyakov’s semiclassical relation between the photon mass and the renormalised monopole density is valid also at the nonperturbative level.
DOI: https://doi.org/10.22323/1.396.0041
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