Planetoid strings : solutions and perturbations

Abstract

A novel ansatz for solving the string equations of motion and constraints in generic curved backgrounds, namely the planetoid ansatz, was proposed recently by some authors. We construct several specific examples of planetoid strings in curved backgrounds which include Lorentzian wormholes, spherical Rindler spacetime and the 2+1 dimensional black hole. A semiclassical quantisation is performed and the Regge relations for the planetoids are obtained. The general equations for the study of small perturbations about these solutions are written down using the standard, manifestly covariant formalism. Applications to special cases such as those of planetoid strings in Minkowski and spherical Rindler spacetimes are also presented.

24 pages (including two figures), RevTex, expanded and figures added

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• Rotating and Orbiting Strings in the Near-Horizon Brane Backgrounds
• Open String Fluctuations in AdS with and without Torsion
• Perturbations of spiky strings in flat spacetimes
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• Logarithmic correction to scaling for multi-spin strings in the AdS_5 black hole background
• Pulsating string solution and stability in two parameter $\chi$-deformed background