Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Wijns, Alexander"'
Publikováno v:
JHEP 0909:105,2009
We complete the investigation of N=(2,2) supersymmetric nonlinear sigma-models in the presence of a boundary. We study the full bihermitian geometry parameterized by chiral, twisted chiral and semi-chiral superfields and identify the D-brane configur
Externí odkaz:
http://arxiv.org/abs/0908.2756
Publikováno v:
Fortschr.Phys.57:691-697,2009
Following the general formalism reviewed in 0810.5355 [hep-th] we present several examples of possible D3-brane configurations on four-dimensional generalized Kaehler geometries. We will discuss T-duality transformations in N = 2 boundary superspace
Externí odkaz:
http://arxiv.org/abs/0901.4250
Publikováno v:
Fortsch.Phys.57:684-690,2009
We present an N = 2 world-sheet superspace description of D-branes on bihermitian or generalized Kaehler manifolds. To accomplish this, D-branes are considered as boundary conditions for a nonlinear sigma-model in what we call N = 2 boundary superspa
Externí odkaz:
http://arxiv.org/abs/0810.5355
Publikováno v:
JHEP0810:108,2008
We investigate N=(2,2) supersymmetric nonlinear sigma-models in the presence of a boundary. We restrict our attention to the case where the bulk geometry is described by chiral and twisted chiral superfields corresponding to a bihermitian bulk geomet
Externí odkaz:
http://arxiv.org/abs/0809.3659
Publikováno v:
Fortsch.Phys.56:922-928,2008
We present a manifestly supersymmetric description of A and B branes on Kaehler manifolds using a completely local N=2 superspace formulation of the world-sheet nonlinear sigma-model in the presence of a boundary. In particular, we show that an N=2 s
Externí odkaz:
http://arxiv.org/abs/0804.2084
Autor:
Collinucci, Andres, Wijns, Alexander
In these lecture notes we will try to give an introduction to the use of the mathematics of fibre bundles in the understanding of some global aspects of gauge theories, such as monopoles and instantons. They are primarily aimed at beginning PhD stude
Externí odkaz:
http://arxiv.org/abs/hep-th/0611201
Publikováno v:
Fortsch.Phys. 53 (2005) 599-604
We introduce and review several indirect methods to calculate the effective action for a single D-brane or a set of coinciding D-branes.
Comment: 7 pages, LaTeX, needs fortschritte.sty, contribution to the proccedings of the 37th International S
Comment: 7 pages, LaTeX, needs fortschritte.sty, contribution to the proccedings of the 37th International S
Externí odkaz:
http://arxiv.org/abs/hep-th/0412271
Autor:
Sevrin, Alexander, Wijns, Alexander
Publikováno v:
JHEP 0308:059,2003
Recently a proposal for the non-abelian effective D-brane action was given through fourth order in alpha'. As the resulting expressions turned out to be quite involved, some checks of this result are called for. In the present paper we calculate the
Externí odkaz:
http://arxiv.org/abs/hep-th/0306260
Autor:
Wijns, Alexander
Publikováno v:
In Nuclear Physics B (Proceedings Supplements) 2007 171:334-336
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.