Browsing by Subject "Noncommutativity"

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  • Noncommutative baby Skyrmions 
    Ioannidou, Theodora; Lechtenfeld, Olaf (Trieste : International School for Advanced Studies, 2010)
    A class of exact analytic noncommutative baby Skyrmions is obtained. The corresponding configurations have singular commutative limit but are stable against scaling due to the noncommutativity. We compute their energies, ...
  • Noncommutative baby Skyrmions 
    Ioannidou, Theodora; Lechtenfeld, Olaf (Amsterdam : Elsevier, 2009)
    We subject the baby Skyrme model to a Moyal deformation, for unitary or Grassmannian target spaces and without a potential term. In the Abelian case, the radial BPS configurations of the ordinary noncommutative sigma model ...
  • Noncommutative deformation of the Ward metric 
    Goffeng, Magnus; Lechtenfeld, Olaf (Trieste : International School for Advanced Studies, 2011)
    The moduli-space metric in the static non-Abelian charge-two sector of the Moyal-deformed CP1 sigma model in 1+2 dimensions is analyzed. After recalling the commutative results of Ward and Ruback and the ?-regularized ...