2009/09/30 by J.X. Lu, J. X. Lu, Rong-Jun Wu
Physics and Astronomy · #Artificial intelligence #Assertion #Black Holes and Theoretical Physics #Brane #Computer science #Cosmology and Gravitation Theories #Divergence (linguistics) #Flux (metallurgy) #Philosophy #Physics #Pulsars and Gravitational Waves Research #Regularization (linguistics) #Theoretical physics #hep-th
paper · pdf · doi:10.1088/1126-6708/2009/11/004
published as JHEP 0911:004,2009 · 19 pages, no figures, references updated and discussion expanded, the version to appear in JHEP
arxiv created 2009/10/25 · openalex publication_date 2009/11/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We address a few subtle issues regarding the interacting D0-D8 system. There are two existing interpretations for the counter-intuitive non-vanishing cylinder-diagram R-R potential. We improve them each by properly dealing with the divergence of potential in the R-R as well as the NS-NS sector, which has been ignored so far. We further test them by considering the D8 to carry a flux, electric or magnetic. We find that the improved interpretations continue to hold. We resolve a subtle issue regarding the regularization of fermionic zero-modes in the R-R sector when the D8 carries an electric flux so that a meaningful result for the potential can be calculated. The persistence of divergence for the potential in either sector in the presence of a flux on the D8 brane indicates that adding a flux/fluxes on the D8 brane doesn't help to improve its nature of existence as an independent object, therefore reenforcing the previous assertion on D8 branes.