Type I Superstrings without D-branes
| dc.creator | Bianchi, Massimo | |
| dc.date | 1997-02-12 | |
| dc.date.accessioned | 2026-07-07T04:23:06Z | |
| dc.date.available | 2026-07-07T04:23:06Z | |
| dc.description | Notwithstanding the central role of D-branes in many recently proposed string dualities, several interesting type I vacua have been found without resorting directly to D-brane technology. In this talk, we analyze a three-generation SO(8)xU(12) chiral type I model with N=1 supersymmetry in D=4. It descends from the type IIB compactification on the Z orbifold and requires only Neumann boundary conditions, i.e. only the ubiquitous D9-branes (pan-branes). We also discuss a large class of 6D type I vacua that display rich patterns of Chan-Paton symmetry breaking/enhancement and various numbers of tensor multiplets. Finally, we briefly address issues raised by the conjectured heterotic - type I duality and by the relation between type I vacua and compactifications of the putative F-theory. | |
| dc.description | 11 pages, latex, no figures; contribution to the Proceedings of the XII Italian Conference on General Relativity and Gravitational Physics, Rome, September 1996 | |
| dc.identifier | https://arxiv.org/abs/hep-th/9702098 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9702098 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/54899 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Type I Superstrings without D-branes | |
| dc.type | text |