Existence of dyons in minimally gauged Skyrme model via constrained minimization

Zhifeng Gao, Yisong Yang

Research output: Contribution to journalArticle

Abstract

We prove the existence of electrically and magnetically charged particle-like static solutions, known as dyons, in the minimally gauged Skyrme model developed by Brihaye, Hartmann, and Tchrakian. The solutions are spherically symmetric, depend on two continuous parameters, and carry unit monopole and magnetic charges but continuous Skyrme charge and non-quantized electric charge induced from the 't Hooft electromagnetism. The problem amounts to obtaining a finite-energy critical point of an indefinite action functional, arising from the presence of electricity and the Minkowski spacetime signature. The difficulty with the absence of the Higgs field is overcome by achieving suitable strong convergence and obtaining uniform decay estimates at singular boundary points so that the negative sector of the action functional becomes tractable.

Original languageEnglish (US)
Pages (from-to)3602-3625
Number of pages24
JournalJournal of Functional Analysis
Volume262
Issue number8
DOIs
StatePublished - Apr 15 2012

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Constrained Minimization
Charge
Uniform Decay
Electromagnetism
Uniform Estimates
Decay Estimates
Monopole
Electricity
Strong Convergence
Higgs
Critical point
Sector
Signature
Space-time
Model
Unit
Energy

Keywords

  • Calculus of variations for indefinite action functional
  • Constraints
  • Dyons
  • Electromagnetism
  • Gauge fields
  • Monopoles
  • Skyrme model
  • Topological invariants
  • Weak convergence

ASJC Scopus subject areas

  • Analysis

Cite this

Existence of dyons in minimally gauged Skyrme model via constrained minimization. / Gao, Zhifeng; Yang, Yisong.

In: Journal of Functional Analysis, Vol. 262, No. 8, 15.04.2012, p. 3602-3625.

Research output: Contribution to journalArticle

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