Ward identities in two-dimensional string theory

  title={Ward identities in two-dimensional string theory},
  author={Igor R. Klebanov},
I study the Ward identities of the w∞ symmetry of the two-dimensional string theory. It is found that, not just an isolated vertex operator, but also a number of vertex operators colliding at a point can produce local charge non-conservation. The structure of all such contact terms is determined. As an application, I calculate all the non-vanishing bulk tachyon amplitudes directly through the Ward identities for a Virasoro subalgebra of the w∞. Recently, a considerable effort has been devoted… CONTINUE READING


Publications referenced by this paper.

35; Brown preprints BROWN-HET-824 and BROWN-HET-839

  • J. Goldstone, unpublished, V. G. Kac
  • Nucl. Phys
  • 1991

Similar Papers

Loading similar papers…