Topological Mass Generation in Three-Dimensional String Theory

Abstract

The effective action of string theory in three dimensions is investigated, incorporating the Lorentz and gauge Chern-Simons terms in the definition of the Kalb-Ramond axion field strength. Since in three dimensions any three-form is trivial, the action can be reformulated by properly integrating the axion out. The circumstances under which it can be recast in form of topologically massive gravity coupled to a topologically massive gauge theory are pointed out. Finally, the strong coupling limit of the resulting action is inspected, with the focus on the roles played by the axion and dilaton fields.

11 pages LaTeX, Alberta preprint Alberta-Thy-46-93

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• On Some New Black String Solutions in Three Dimensions
• Entropy of Black Holes in D=5, N=2 Supergravity and AdS Central Charges