Non-Critical Poincaré Invariant Bosonic String Backgrounds and Closed String Tachyons

Abstract

A new family of non critical bosonic string backgrounds in arbitrary space time dimension $D$ and with $ISO(1,D-2)$ Poincaré invariance are presented. The metric warping factor and dilaton agree asymptotically with the linear dilaton background. The closed string tachyon equation of motion enjoys, in the linear approximation, an exact solution of ``kink'' type interpolating between different expectation values. A renormalization group flow interpretation ,based on a closed string tachyon potential of type $-T^2{e}^{-T}$, is suggested.

arXiv commentlatex, 16 pages, 4 figures, misprints corrected

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Cited by in corpus (5)

• Non-critical supergravity (d>1) and holography
• Fundamental matter, meson spectroscopy and non-critical string/gauge duality
• On Isolated Conformal Fixed Points and Noncritical String Theory
• Decay widths of large-spin mesons from the non-critical string/gauge duality
• Space-time filling branes in non critical (super) string theories