We show that vertex operators for strings propagating in background fields are composite operators of anomalous dimension two in a two-dimensional field theory defined on a curved world-sheet. We show how special features of renormalization theory in curved spacetime are responsible for a number of peculiar features of string physics, including the need for apparently unphysical fields to maintain gauge invariance in string field theory.
|Original language||English (US)|
|Number of pages||14|
|Journal||Nuclear Physics, Section B|
|State||Published - Aug 4 1986|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics