Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-04-16
Phys.Rev.D77:105028,2008
Physics
High Energy Physics
High Energy Physics - Theory
9 pages. This version presented the relation between Lorentz symmetry violation by the background and the appearance of terms
Scientific paper
10.1103/PhysRevD.77.105028
The main goal of this work is to investigate the possibility of finding the supersymmetric version of the U(1)-global string model which behaves as a vortex-superfluid. To describe the superfluid phase, we introduce a Lorentz-symmetry breaking background that, in an approach based on supersymmetry, leads to a discussion on the relation between the violation of Lorentz symmetry and explicit soft supersymmetry breakings. We also study the relation between the string configuration and the vortex-superfluid phase. In the framework we settle down in terms of superspace and superfields, we actually establish a duality between the vortex degrees of freedom and the component fields of the Kalb-Ramond superfield. We make also considerations about the fermionic excitations that may appear in connection with the vortex formation.
Ferreira Cristine N.
Helayël-Neto Jose A.
Ney Wander G.
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