منابع مشابه
Information metric on instanton moduli spaces in nonlinear sigma models.
We study the information metric on instanton moduli spaces in two-dimensional nonlinear sigma models. In the CP1 model, the information metric on the moduli space of one instanton with the topological charge Q=k(k > or =1) is a three-dimensional hyperbolic metric, which corresponds to Euclidean anti-de Sitter space-time metric in three dimensions, and the overall scale factor of the information...
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We study two-dimensional nonlinear sigma models with target spaces being the complex super Grassmannian manifolds, that is, coset supermanifolds G(m, p|n, q) ∼= U(m|n)/[U(p|q) ⊗ U(m − p|n − q)] for 0 ≤ p ≤ m, 0 ≤ q ≤ n and 1 ≤ p + q. The projective superspace CP is a special case of p = 1, q = 0. For the two-dimensional Euclidean base space, a wide class of exact classical solutions (or harmoni...
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Supersymmetric nonlinear sigma models are obtained from linear sigma models by imposing supersymmetric constraints. If we introduce auxiliary chiral and vector superfields, these constraints are expressed by D-terms and F-terms depending on the target manifolds. Auxiliary vector superfields appears as gauge fields without kinetic terms. If there is no D-term constraints, the target manifolds ar...
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We study in detail the particle spectrum in anomaly mediated supersymmetry breaking models in which supersymmetry breaking terms are induced by the super-Weyl anomaly. We investigate the minimal anomaly mediated supersymmetry breaking models, gaugino assisted supersymmetry breaking models, as well as models with additional residual nondecoupling D-term contributions due to an extra U(1) gauge s...
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BPS walls and junctions are studied in N = 1 SUSY nonlinear sigma models in four spacetime dimensions. New BPS junction solutions connecting N discrete vacua are found for nonlinear sigma models with several chiral scalar superfields. A nonlinear sigma model with a single chiral scalar superfield is also found which has a moduli space of the topology of S and admits BPS walls and junctions conn...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1985
ISSN: 0550-3213
DOI: 10.1016/0550-3213(85)90326-8