Open String/Open D-Brane Dualities: Old and New

TL;DR

This paper explores dualities between different non-commutative theories derived from D-branes and NS5-branes, revealing new relationships and a unified web of strong and weak coupling dualities involving open D-branes.

Contribution

It introduces novel duality transformations between near horizon regions with magnetic and electric fluxes, and proposes a unified web connecting strong and weak coupling regimes of open D-brane theories.

Findings

Dual formulations of NCYM, NCOS, and OD$p$ theories in certain limits.

Identification of transformations between magnetic and electric near horizon regions.

Proposal of a unified duality web involving strong/weak coupling and non-commutativity scales.

Abstract

We examine magnetic and electric near horizon regions of maximally supersymmetric D-brane and NS5-brane bound states and find transformations between near horizon regions with worldvolume dual magnetic and electric fluxes. These point to dual formulations of NCYM, NCOS and OD$p$ theories in the limit of weak coupling and large spatial or temporal non-commutativity length scale in terms of weakly coupled theories with fixed worldvolume dual non-commutativity based on open D-branes. We also examine the strong coupling behavior of the open D-brane theories and propose a unified web of dualities involving strong/weak coupling as well as large/small non-commutativity scale.