Equivalence of 3D Spinning String and Superstring

TL;DR

This paper demonstrates that the spectrum of a 3D spinning string in light-cone gauge matches that of a 3D superstring, establishing their equivalence in terms of physical spectra.

Contribution

It shows the equivalence of the 3D spinning string and superstring spectra through light-cone gauge quantization, a novel result in string theory.

Findings

Spectrum is Lorentz invariant.

Spectrum matches that of 3D superstring.

Establishes equivalence of the two string models.

Abstract

We perform a light-cone gauge quantization of the Ramond closed spinning string in three spacetime dimensions (3D). The spectrum is Lorentz invariant and identical to that of the 3D Green-Schwarz closed superstring with ${\cal N}=2$ space-time supersymmetry, quantized in light-cone gauge.