{ "id": "1308.4272", "version": "v2", "published": "2013-08-20T09:45:44.000Z", "updated": "2013-08-21T20:56:43.000Z", "title": "Measurement: still a problem in standard quantum theory", "authors": [ "R. E. Kastner" ], "categories": [ "quant-ph" ], "abstract": "It is argued that recent claims by A. Hobson that standard quantum theory has no measurement problem cannot be sustained. Moreover, it is pointed out that taking the reduced density operator of a component system as an epistemic (ignorance-based) mixture has long been known to be untenable based on direct proof.", "revisions": [ { "version": "v2", "updated": "2013-08-21T20:56:43.000Z" } ], "analyses": { "keywords": [ "standard quantum theory", "direct proof", "component system", "measurement problem", "reduced density operator" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1308.4272K" } } }