Magnetic backgrounds and tachyonic instabilities in closed string theory
arXiv:hep-th/0108140 · doi:10.1063/1.1454381
Abstract
We discuss some aspects of closed superstrings in Melvin-type magnetic backgrounds. A 2-parameter family of such NS-NS backgrounds are exactly solvable as weakly coupled string models with the spectrum containing tachyonic modes. Magnetic field allows one to interpolate between free superstring theories with periodic and antiperiodic boundary conditions for the space-time fermions around some compact direction, and, in particular, between type 0 and type II string theories. Using ``9-11'' flip, this interpolation can be extended to M-theory and may be used to study the issue of tachyon in type 0 string theory. We review, following hep-th/0104238, related duality proposals, and, in particular, consider a description of type 0 theory in terms of M-theory in a curved magnetic flux background in which the type 0 tachyon appears to correspond to a state in supergravity fluctuation spectrum.
12 pages, latex. Contribution to the proceedings of the 10-th Tohwa International Symposium on String Theory, Fukuoka, Japan, July 3-7, 2001; v2: references added
References in corpus (5)
Cited by in corpus (12)
- Localized Tachyons and RG Flows
- On Smooth Time-Dependent Orbifolds and Null Singularities
- Orbifolds as Melvin Geometry
- Closed String Tachyon Condensation at c=1
- Properties of String Theory on Kaluza-Klein Melvin Background
- Composite fluxbranes with general intersections
- Supergravity Fluxbranes in Various Dimensions
- Inverse dualisation and non-local dualities between Einstein gravity and supergravities
- Supersymmetric Kaluza-Klein reductions of M2 and M5-branes
- Decay of type 0 NS5-branes to nothing
- On type 0 string theory in solvable RR backgrounds
- F0 fluxbranes, F-walls and new brane worlds