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

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

2000-11-13

arxiv.org/abs/hep-th/0011105v3

Nucl.Phys. B600 (2001) 185-196

Physics

High Energy Physics

High Energy Physics - Theory

latex, 16 pages, 4 figures, misprints corrected

Scientific paper

10.1016/S0550-3213(01)00041-4

A new family of non critical bosonic string backgrounds in arbitrary space time dimension $D$ and with $ISO(1,D-2)$ Poincar\'e 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.

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