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On the interplay of fermions and monopoles in compact QED(3)

Simon Hands, John B. Kogut, Biagio Lucini Orcid Logo

Swansea University Author: Biagio Lucini Orcid Logo

Abstract

The infra-red properties of three-dimensional abelian lattice gauge theory are known to be governed by a neutral plasma of magnetic monopole excitations. We address the fate of these monopoles in the presence of light dynamical fermions, using a lattice formulation of compact QED_3 with N_f=4 fermio...

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Published: 2006
Online Access: http://inspirehep.net/record/707807
URI: https://cronfa.swan.ac.uk/Record/cronfa27935
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spelling 2016-05-14T16:42:11.4170878 v2 27935 2016-05-14 On the interplay of fermions and monopoles in compact QED(3) 7e6fcfe060e07a351090e2a8aba363cf 0000-0001-8974-8266 Biagio Lucini Biagio Lucini true false 2016-05-14 SMA The infra-red properties of three-dimensional abelian lattice gauge theory are known to be governed by a neutral plasma of magnetic monopole excitations. We address the fate of these monopoles in the presence of light dynamical fermions, using a lattice formulation of compact QED_3 with N_f=4 fermion flavors supplemented by a four-fermi contact term permitting numerical Monte Carlo simulations in the chiral limit. Our data hint at a restoration of chiral symmetry above a critical value of the (inverse) coupling beta. By performing simulations in a sector of non-vanishing magnetic charge, we are able to study the response of the theory to an external magnetic test charge. Our results suggest that the monopole plasma persists even once chiral symmetry is restored, and hence survives the continuum limit. Working paper 31 1 2006 2006-01-31 http://inspirehep.net/record/707807 COLLEGE NANME Mathematics COLLEGE CODE SMA Swansea University 2016-05-14T16:42:11.4170878 2016-05-14T16:42:11.4170878 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Simon Hands 1 John B. Kogut 2 Biagio Lucini 0000-0001-8974-8266 3
title On the interplay of fermions and monopoles in compact QED(3)
spellingShingle On the interplay of fermions and monopoles in compact QED(3)
Biagio Lucini
title_short On the interplay of fermions and monopoles in compact QED(3)
title_full On the interplay of fermions and monopoles in compact QED(3)
title_fullStr On the interplay of fermions and monopoles in compact QED(3)
title_full_unstemmed On the interplay of fermions and monopoles in compact QED(3)
title_sort On the interplay of fermions and monopoles in compact QED(3)
author_id_str_mv 7e6fcfe060e07a351090e2a8aba363cf
author_id_fullname_str_mv 7e6fcfe060e07a351090e2a8aba363cf_***_Biagio Lucini
author Biagio Lucini
author2 Simon Hands
John B. Kogut
Biagio Lucini
format Working paper
publishDate 2006
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
url http://inspirehep.net/record/707807
document_store_str 0
active_str 0
description The infra-red properties of three-dimensional abelian lattice gauge theory are known to be governed by a neutral plasma of magnetic monopole excitations. We address the fate of these monopoles in the presence of light dynamical fermions, using a lattice formulation of compact QED_3 with N_f=4 fermion flavors supplemented by a four-fermi contact term permitting numerical Monte Carlo simulations in the chiral limit. Our data hint at a restoration of chiral symmetry above a critical value of the (inverse) coupling beta. By performing simulations in a sector of non-vanishing magnetic charge, we are able to study the response of the theory to an external magnetic test charge. Our results suggest that the monopole plasma persists even once chiral symmetry is restored, and hence survives the continuum limit.
published_date 2006-01-31T03:33:56Z
_version_ 1763751426577661952
score 11.016235

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