Spacelike boundaries from the c=1 Matrix Model

Abstract

We find classical solutions of two dimensional noncritical string theory which give rise to geometries with spacelike boundaries, similar to spacetimes with cosmological event horizons. In the c=1 matrix model, these solutions have a representation as simple time dependent configurations. We obtain the causal structure of the resulting spacetimes. Using the macroscopic loop transform, we probe the form of the tachyon condensate in the asymptotic regions.

22 pages, 5 figures, v2: reference added, v3: minor corrections

References in corpus (4)

• The Annular Report on Non-Critical String Theory
• Comments on 2D Type IIA String and Matrix Model
• On The Problem of Particle Production in c=1 Matrix Model
• Backgrounds of 2D string theory from matrix model

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• De Sitter Quantum Mechanics and Inflationary Matrix Cosmology of Self-tuned Universe
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