Lectures on curved beta-gamma systems, pure spinors, and anomalies Export

@article{citeulike:4280289, abstract = {The curved beta-gamma system is the chiral sector of a certain infinite radius limit of the non-linear sigma model with complex target space. Naively it only depends on the complex structures on the worldsheet and the target space. It may suffer from the worldsheet and target space diffeomorphism anomalies. We analyze the curved beta-gamma system on the space of pure spinors, aiming to verify the consistency of Berkovits covariant superstring quantization. We demonstrate that under certain conditions both anomalies can be cancelled for the pure spinor sigma model, in which case one reproduces the old construction of B.Feigin and E.Frenkel.}, archivePrefix = {arXiv}, author = {Nekrasov, Nikita}, citeulike-article-id = {4280289}, citeulike-linkout-0 = {http://arxiv.org/abs/hep-th/0511008}, citeulike-linkout-1 = {http://arxiv.org/pdf/hep-th/0511008}, day = {1}, eprint = {hep-th/0511008}, keywords = {anomalies, b-c-systems, brst, pure-spinor}, month = {Nov}, posted-at = {2009-04-06 21:01:14}, priority = {2}, title = {Lectures on curved beta-gamma systems, pure spinors, and anomalies}, url = {http://arxiv.org/abs/hep-th/0511008}, year = {2005} }

TY - JOUR ID - citeulike:4280289 L3 - citeulike-article-id:4280289 N2 - The curved beta-gamma system is the chiral sector of a certain infinite radius limit of the non-linear sigma model with complex target space. Naively it only depends on the complex structures on the worldsheet and the target space. It may suffer from the worldsheet and target space diffeomorphism anomalies. We analyze the curved beta-gamma system on the space of pure spinors, aiming to verify the consistency of Berkovits covariant superstring quantization. We demonstrate that under certain conditions both anomalies can be cancelled for the pure spinor sigma model, in which case one reproduces the old construction of B.Feigin and E.Frenkel. TI - Lectures on curved beta-gamma systems, pure spinors, and anomalies KW - anomalies KW - b-c-systems KW - brst KW - pure-spinor AU - Nekrasov, Nikita PY - 2005/Nov/01/ UR - http://arxiv.org/abs/hep-th/0511008 ER -