Closed-String Tachyon Condensation and the Worldsheet Super-Higgs Effect

Details Closed-String Tachyon Condensation and the Worldsheet Super-Higgs Effect Closed-String Tachyon Condensation and the Worldsheet Super-Higgs Effect

2007-09-13

arxiv.org/abs/0709.2162v3

Phys.Rev.Lett.100:051601,2008

Physics

High Energy Physics

High Energy Physics - Theory

4 pages; v2: typos corrected, a reference added; v3: final version, to appear in Phys. Rev. Lett. (abstract and intro modified

Scientific paper

10.1103/PhysRevLett.100.051601

Alternative gauge choices for worldsheet supersymmetry can elucidate dynamical phenomena obscured in the usual superconformal gauge. In the particular example of the tachyonic $E_8$ heterotic string, we use a judicious gauge choice to show that the process of closed-string tachyon condensation can be understood in terms of a worldsheet super-Higgs effect. The worldsheet gravitino assimilates the goldstino and becomes a dynamical propagating field. Conformal, but not superconformal, invariance is maintained throughout.

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