A manifestly S-dual, and `12 dimensional', IIB superstring action with an Sl(2; R) doublet of `Born-Infeld' fields is presented. The M-theory origin of the 12th dimension is the M-2-brane tension, which can be regarded as the flux of a 3-form worldvolume field strength. The latter is required by the fact that the M-2-brane can have a boundary on an M-5-brane.
Physics Letters B
- Pub Date:
- February 1997
- High Energy Physics - Theory
- 10 pp. Phyzxx. Typos corrected. Some points clarified. Some refs. added (Yesterday's revised version wasn't)