Trivial Spectrum of Free 1+1 Light-Cone Strings

Abstract

The BRST cohomology of 1+1 strings in a free light-cone gauge contains only the two-dimensional tachyon, and excludes all excited states of both matter and ghosts, including the special states that arise in the continuum conformal gauge quantization and in the $c=1$ matrix models. This exclusion takes place at a very basic level, and therefore may signal some serious problems or at least unresolved issues involved in this gauge choice.

9 pages, UTTG 17-92

References in corpus (3)

• Interaction of Discrete States in Two-Dimensional String Theory
• Ground Rings and Their Modules in 2D Gravity with $c\le 1$ Matter
• Light-Cone Gauge for 1+1 Strings

Cited by in corpus (2)

• Light-Front View of The Axial Anomaly
• Light-Cone Gauge Quantization of 2D Sigma Models