English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We obtain the supergravity solution which describes a bound state ofD-string/anti-D-string pairs attached to different fixed planes of an orbifold,in type IIB string theory compactified on T^4/Z_2. For parameters at which theconformal field theory point of view predicts stability, the solution displaysa repulson-like singularity. However, we observe that a D-string/anti-D-stringpair probe in this background becomes tensionless before reaching thesingularity, suggesting a resolution by the enhancon mechanism. Moreover, theforce feels by this probe is attractive, in contrast to the repulsive behaviourobserved in the non-BPS D-brane description.Comment: 21 pages, Latex, uses JHEP.cls. Substantial revision; in particular,  clarification of the two T-dual descriptions in section 2 and improved  discussion of the enhancon mechanism in section 4. Published versio

Taming the supergravity description of non-BPS D-branes: the D/anti-D solution