Non-critical non-singular bosonic strings, linear dilatons and holography

AdS(5) with linear dilaton and nonvanishing B-field is shown to be a solution of the noncritical string beta function equations. A noncritical (D = 5) solution interpolating between flat spacetime and AdS5, with asymptotic linear dilaton and nonvanishing B-field is also presented. This solution is free of spacetime singularities and has got the string coupling constant everywhere bounded. Both solutions admit holographic interpretation in terms of N = 0 field theories. Closed string tachyon stability is also discussed. (C) 2001 Elsevier Science B.V. All rights reserved.