Lorentz Invariance Violation from String Theory
| dc.creator | Mavromatos, Nikolaos E. | |
| dc.date | 2007-08-16 | |
| dc.date.accessioned | 2026-07-07T13:11:57Z | |
| dc.date.available | 2026-07-07T13:11:57Z | |
| dc.description | In this brief, and by no means complete, review I discuss situations in string theory, in which Lorentz Invariance Violation may occur in a way consistent with world-sheet conformal invariance, thereby leading to acceptable, in principle, string backgrounds. In particular, I first discuss spontaneous Lorentz violation in (non supersymmetric) open string field theory. Then, I move onto a discussion of gravity-induced modified dispersion relations in non-critical (Liouville) strings, in the sense of an induced Finsler-like geometry depending on both coordinates and momenta, for string propagation in non-trivial space times (such as D-particle ``foamy situations''). I pay attention to explaining the appearance of bi-metric models from such string theories, which could serve as examples of alternative scenaria to dark matter. Finally, I make some comparisons with similar developments in other contexts, such as critical strings in non-commutative space times, as well as deformed special relativities and theories with reduced Lorentz symmetry, advocated recently, where again Finsler geometry seems to come into play. In this latter respect, I put the emphasis on phenomenology and attempt to answer the question as to whether there is the possibility of experimental disentanglement of the various approaches. | |
| dc.description | 26 pages Latex, uses special macros, three eps figures incorporated. Invited talk at the International Workshop ``From Quantum to Emergent Gravity: Theory and Phenomenology'', SISSA, Trieste (Italy), June 11-15 2007 | |
| dc.identifier | https://arxiv.org/abs/0708.2250 | |
| dc.identifier | http://arxiv.org/abs/0708.2250 | |
| dc.identifier | PoS QG-Ph:027,2007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/229447 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Lorentz Invariance Violation from String Theory | |
| dc.type | text |