Quantum Consistency of the Superstring in AdS_5 x S^5 Background
Abstract
Description
Using arguments based on BRST cohomology, the pure spinor formalism for the superstring in an AdS_5 x S^5 background is proven to be BRST invariant and conformally invariant at the quantum level to all orders in perturbation theory. Cohomology arguments are also used to prove the existence of an infinite set of non-local BRST-invariant charges at the quantum level.
14 pages harvmac tex, added footnotes 3-6 which give more details on the BRST cohomology arguments
14 pages harvmac tex, added footnotes 3-6 which give more details on the BRST cohomology arguments