Bogomol'nyi-Prasad-Sommerfield walls and junctions in supersymmetric nonlinear sigma models

M. Naganuma, M. Nitta, N. Sakai

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


Bogomol'nyi-Prasad-Sormmerfield (BPS) walls and junctions are studied in N = 1 supersymmetric (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 S1 and admits BPS walls and junctions connecting arbitrary points in moduli space. SUSY conditions in nonlinear sigma models are classified either as stationary points of a superpotential or as singularities of the Kähler metric in field space. The total number of SUSY vacua is invariant under holomorphic field redefinitions if we count "runaway vacua" also.

Original languageEnglish
Article number045016
Pages (from-to)450161-4501612
Number of pages4051452
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number4
Publication statusPublished - 2002 Feb 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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