Tree-Level Stability Without Spacetime Fermions: Novel Examples in String Theory
| dc.creator | Israel, Dan | |
| dc.creator | Niarchos, Vasilis | |
| dc.date | 2007-05-15 | |
| dc.date | 2007-07-28 | |
| dc.date.accessioned | 2026-07-07T13:04:20Z | |
| dc.date.available | 2026-07-07T13:04:20Z | |
| dc.description | Is perturbative stability intimately tied with the existence of spacetime fermions in string theory in more than two dimensions? Type 0'B string theory in ten-dimensional flat space is a rare example of a non-tachyonic, non-supersymmetric string theory with a purely bosonic closed string spectrum. However, all known type 0' constructions exhibit massless NSNS tadpoles signaling the fact that we are not expanding around a true vacuum of the theory. In this note, we are searching for perturbatively stable examples of type 0' string theory without massless tadpoles in backgrounds with a spatially varying dilaton. We present two examples with this property in non-critical string theories that exhibit four- and six-dimensional Poincare invariance. We discuss the D-branes that can be embedded in this context and the type of gauge theories that can be constructed in this manner. We also comment on the embedding of these non-critical models in critical string theories and their holographic (Little String Theory) interpretation and propose a general conjecture for the role of asymptotic supersymmetry in perturbative string theory. | |
| dc.description | harvmac, 29 pages; v2 minor changes, version to appear in JHEP | |
| dc.identifier | https://arxiv.org/abs/0705.2140 | |
| dc.identifier | http://arxiv.org/abs/0705.2140 | |
| dc.identifier | JHEP 0707:065,2007 | |
| dc.identifier | doi:10.1088/1126-6708/2007/07/065 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/227127 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Tree-Level Stability Without Spacetime Fermions: Novel Examples in String Theory | |
| dc.type | text |