PROJECTION OPERATORS AND D-BRANES IN PURELY CUBIC OPEN STRING FIELD THEORY
- 14 September 2001
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 16 (28) , 1811-1821
- https://doi.org/10.1142/s0217732301005059
Abstract
We study a matrix version of the purely cubic open string field theory as describing the expansion around the closed string vacuum. Any D-branes in the given closed string background can appear as classical solutions by using the identity projectors. Expansion around this solution gives the correct kinetic term for the open strings on the created D-branes while there are some subtleties in the unwanted degree of freedom.Keywords
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