{ "id": "quant-ph/0205191", "version": "v2", "published": "2002-05-31T12:27:12.000Z", "updated": "2003-02-27T04:34:27.000Z", "title": "Security of quantum cryptography using balanced homodyne detection", "authors": [ "Ryo Namiki", "Takuya Hirano" ], "comment": "RevTeX4, 8pages, 7 figures", "journal": "Phys. Rev. A 67, 022308 (2003) (7 pages)", "doi": "10.1103/PhysRevA.67.022308", "categories": [ "quant-ph" ], "abstract": "In this paper we investigate the security of a quantum cryptographic scheme which utilizes balanced homodyne detection and weak coherent pulse (WCP). The performance of the system is mainly characterized by the intensity of the WCP and postselected threshold. Two of the simplest intercept/resend eavesdropping attacks are analyzed. The secure key gain for a given loss is also discussed in terms of the pulse intensity and threshold.", "revisions": [ { "version": "v2", "updated": "2003-02-27T04:34:27.000Z" } ], "analyses": { "keywords": [ "quantum cryptography", "quantum cryptographic scheme", "simplest intercept/resend eavesdropping attacks", "utilizes balanced homodyne detection", "weak coherent pulse" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. A" }, "note": { "typesetting": "RevTeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }