Vacua and walls of mass-deformed Kähler nonlinear sigma models on $Sp(N)/U(N)$

Abstract

We study vacua and walls of mass-deformed Kähler nonlinear sigma models on $Sp(N)/U(N)$. We identify elementary walls with the simple roots of $USp(2N)$ and discuss compressed walls, penetrable walls and multiwalls by using the moduli matrix formalism.

34 pages, 17 figures; references added, typos corrected, accepted for publication in PRD