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Brian Durcan

Publications and source records attributed to Brian Durcan.

2 recordsLinked to original sources
arXiv2008

The 't Hooft-Polyakov Monopole in the Presence of a 't Hooft Operator

We present explicit BPS field configurations representing one nonabelian monopole with one minimal weight 't Hooft operator insertion. We explore the SO(3) and SU(2) gauge groups. In the case of SU(2) gauge group the minimal 't Hooft operator can be completely screened by the monopole. If the gauge group is SO(3), however, such screening is impossible. In the latter case we observe a different effect of the gauge symmetry enhancement in the vicinity of the 't Hooft operator.

hep-th↗
arXiv2007

Singular Monopoles via the Nahm Transform

We present explicit expressions for the fields of a charge one BPS monopole with two Dirac singularities. These are solutions of the nonlinear Bogomolny equations with the gauge group U(2) or SO(3). We derive these expressions by applying the technique of the Nahm transform. By exploring various limits we find a number of other solutions.

hep-th↗