Supercritical stability, transitions and (pseudo)tachyons
arXiv:hep-th/0612031 · doi:10.1103/PhysRevD.75.046003
Abstract
Highly supercritical strings (c much greater than 15) with a time-like linear dilaton provide a large class of solutions to string theory, in which closed string tachyon condensation is under control (and follows the worldsheet renormalization group flow). In this note we analyze the late-time stability of such backgrounds, including transitions between them. The large friction introduced by the rolling dilaton and the rapid decrease of the string coupling suppress the back-reaction of naive instabilities. In particular, although the graviton, dilaton, and other light fields have negative effective mass squared in the linear dilaton background, the decaying string coupling ensures that their condensation does not cause large back-reaction. Similarly, the copious particles produced in transitions between highly supercritical theories do not back-react significantly on the solution. We discuss these features also in a somewhat more general class of time-dependent backgrounds with stable late-time asymptotics.
21 pages, harvmac. v2: added reference
References in corpus (17)
- String Theory Modifies Quantum Mechanics
- On The Conformal Field Theory Of The Higgs Branch
- Open String Creation by S-Branes
- Clean Time-Dependent String Backgrounds from Bubble Baths
- Things Fall Apart: Topology Change from Winding Tachyons
- The Tachyon at the End of the Universe
- Cosmological solutions with dilaton and maximally symmetric space in string theory
- Cosmological solutions of supercritical string theory
- Liouville Cosmology at Zero and Finite Temperatures
- On Closed String Tachyon Dynamics
- On string cosmology and the RG flow in 2d field theory
- Dimensional Mutation and Spacelike Singularities
- New Dimensions for Wound Strings: The Modular Transformation of Geometry to Topology
- Supercritical N = 2 string theory
- A Liouville String Approach to Microscopic Time and Cosmology
- Closed String Tachyon Condensation in Supercritical Strings and RG Flows
- On The Interpolating Solutions of Strings in Different Backgrounds
Cited by in corpus (27)
- String Cosmology: A Review
- Cosmological solutions of supercritical string theory
- A Short Review of Time Dependent Solutions and Space-like Singularities in String Theory
- FRW solutions and holography from uplifted AdS/CFT
- New Dimensions for Wound Strings: The Modular Transformation of Geometry to Topology
- Lorentz Invariance Violation from String Theory
- Future Foam
- New solutions with accelerated expansion in string theory
- Stringy instability inside the black hole
- Modeling Quantum Gravity Effects in Inflation
- Non-Relativistic Superstring Theories
- Thermal AdS(3), BTZ and competing winding modes condensation
- The Averaged Null Energy Condition and the Black Hole Interior in String Theory
- Cosmology of the closed string tachyon
- Dimensional Duality
- Supercritical N = 2 string theory
- M-Theory Through the Looking Glass: Tachyon Condensation in the E_8 Heterotic String
- World Sheet Commuting βγCFT and Non-Relativistic String Theories
- String Theory and The Arrow of Time
- Discrete States in Light-Like Linear Dilaton Background
- Quantum Effects on Tachyon Dynamics
- Supercriticality of a Class of Critical String Cosmological Solutions
- D-dualized D-brane
- On fluctuations of closed string tachyon solitons
- Toroidal orbifold compactifications at large D and D-duality
- Exact null tachyons from RG flows
- Supercritical linear dilaton capping state using Interpolating functions