{ "id": "hep-th/9502082", "version": "v2", "published": "1995-02-14T16:05:34.000Z", "updated": "1995-10-21T05:28:45.000Z", "title": "BRST Cohomology and Its Application to QED", "authors": [ "Hyun Seok Yang", "Bum-Hoon Lee" ], "comment": "17 pages, RevTex, Revised version published in J. Korean Phys. Soc., Vol. 28, No. 2, April 1995, pp. 138-144", "journal": "J.Korean Phys.Soc.28:138-144,1995", "categories": [ "hep-th" ], "abstract": "We construct the BRST cohomology under a positive definite inner product and obtain the Hodge decomposition theorem at a non-degenerate state vector space $V$. The harmonic states isomorphic with a BRST cohomology class correspond to the physical Hilbert space with positive norm as long as the completeness of $Q_{BRST}$ is satisfied. We explicitly define ``co-BRST'' operator and analyze the quartet mechanism in QED.", "revisions": [ { "version": "v2", "updated": "1995-10-21T05:28:45.000Z" } ], "analyses": { "keywords": [ "application", "brst cohomology class correspond", "non-degenerate state vector space", "positive definite inner product", "harmonic states isomorphic" ], "tags": [ "journal article" ], "note": { "typesetting": "RevTeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable", "inspire": 392786, "adsabs": "1995hep.th....2082Y" } } }