Superembedding approach and S-duality: a unified description of superstring and super-D1-brane

Abstract

It is proved that a basic superembedding equation for the 2-dimensional worldsheet superspace Σ (2|8+8) embedded into D=10 type IIB superspace M (10|16+16) provides a universal, S-duality invariant description of a fundamental superstring and super-D1-brane. We work out generalized action principle, obtain superfield equations of motion for both these objects and find how the S-duality transformations relate the superfield equations of superstring and super-D1-brane.The superembedding of 6-dimensional worldsheet superspace Σ (6|16) into the D=10 type IIB superspace M (10|16+16) will probably provide a similar universal description for the set of type IIB super-NS5-brane, super-D5-brane and a Kaluza-Klein monopole (super-KK5-brane).

Superembedding approach to Dp-branes, M-branes and multiple D(0)-brane systems

“…Following the so-called STV approach to superparticles and superstrings [48,49] 5 the superembedding approach [15,3,5,16,19,20,21] describes the dynamics of super-pbrane in terms of embedding of a worldvolume superspace into the target superspace.…”

“…In this contribution we give a review of superembedding approach to super-p-branes [15,3,5,16,17,18,19,20,21] in D=10 and D=11 superspaces and its recent application in search for the supersymmetric and Lorentz covariant (diffeomorphism invariant) description of the multiple brane systems [22]. In the part devoted to superembedding description of a single brane our emphasis will be on the superembedding description of Dirichlet super-p-branes (Dp-branes) (in contrast with the already existing review [19]).…”

Aspects of D-brane dynamics in supergravity backgrounds with fluxes, kappa-symmetry and equations of motion. Part IIB

“…[66]) the worldvolume field strength has only one component F ab = ǫ ab F and the Born-Infeld equation simplifies to 17) where C 0 (x) is the axion and c is an integration constant. The worldvolume scalar field equation (3.24), (3.27) is…”

New Superembeddings for Type II Superstrings

“…As is well known such rotations are the symmetry of the embedding equations rather than the Type IIB GS superstring action. Recently it was established that χ is related to the on-shell value of the field strength of 2d gauge field living on the D1−brane, so that superembedding under consideration describes on equal footing both the Type IIB superstring and the D1−brane [67]. The other components of Eq.…”