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Domain walls and flux tubes in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">N</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn><mml:mn /></mml:math>SQCD: D-brane prototypes
This paper could have been entitled ``D branes and strings from flesh and blood.'' We study field theoretic prototypes of D branes or strings. To this end we consider (2+1)-dimensional domain walls in (3+1)-dimensional $\mathcal{N}=2$ supersymmetric QCD with an SU(2) gauge group and ${N}_{f}=2$ flavors of fundamental hypermultiplets (quarks). This …