D-branes and matrix factorisations in supersymmetric coset models

Nicolas Behr, Stefan Fredenhagen

Research output: Contribution to journalArticlepeer-review


Matrix factorisations describe B-type boundary conditions in backslashmathcalN = 2 supersymmetric Landau-Ginzburg models. At the infrared fixed point, they correspond to superconformal boundary states. We investigate the relation between boundary states and matrix factorisations in the Grassmannian Kazama-Suzuki coset models. For the first nonminimal series, i.e. for the models of type SU(3) k /U(2), we identify matrix factorisations for a subset of the maximally symmetric boundary states. This set provides a basis for the RR charge lattice, and can be used to generate (presumably all) other boundary states by tachyon condensation.
Original languageEnglish
Pages (from-to)1-60
Number of pages60
JournalJournal of High Energy Physics
Issue number11
Publication statusPublished - 2010


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