title: Instabilities of non-abelian vortices in dense QCD.
abstract: We construct a low-energy effective theory describing non-abelian vortices in the color superconducting quark matter under stress. We demonstrate that all the vortices are radically unstable against decay into the only one type of vortices due to the potential term induced by the explicit flavor symmetry breaking by the strange quark mass. A simple analytical estimate for the lifetime of unstable vortices is provided under the controlled weak-coupling calculations. We briefly discuss the (non)existence of magnetic monopoles at high density.
authors.affiliation: Theoretical Physics Laboratory, RIKEN, Saitama 351-0198, Japan.
authors.forename: Minoru
authors.initials: M
authors.lastname: Eto
authors.forename: Muneto
authors.initials: M
authors.lastname: Nitta
authors.forename: Naoki
authors.initials: N
authors.lastname: Yamamoto