2011/11/30 by Johan Blåbäck, Ulf H. Danielsson, Daniel Junghans +3 · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1007/jhep02(2012)025
published as JHEP 1202:025,2012 · 12 pages + appendices, 1 figure; v2: minor changes, version published in JHEP
arxiv created 2012/02/17 · arxiv updated 2015/06/03
We improve on the understanding of the backreaction of anti-D6-branes in a flux background that is mutually BPS with D6-branes. This setup is analogous to the study of the backreaction of anti-D3-branes inserted in the KS throat, but does not require us to smear the anti-branes or do a perturbative analysis around the BPS background. We solve the full equations of motion near the anti-D6-branes and show that only two boundary conditions are consistent with the equations of motion. Upon invoking a topological argument we eliminate the boundary condition with regular H flux since it cannot lead to a solution that approaches the right kind of flux away from the anti-D6-brane. This leaves us with a boundary condition which has singular, but integrable, H flux energy density.