{ "id": "1909.09865", "version": "v1", "published": "2019-09-21T18:29:22.000Z", "updated": "2019-09-21T18:29:22.000Z", "title": "An optical implementation of quantum bit commitment using infinite-dimensional systems", "authors": [ "Guang Ping He" ], "comment": "6 pages, 1 figure", "categories": [ "quant-ph" ], "abstract": "Unconditionally secure quantum bit commitment (QBC) was widely believed to be impossible for more than two decades. But recently, basing on an anomalous behavior found in quantum steering, we proposed a QBC protocol which can be unconditionally secure in principle. The protocol requires the use of infinite-dimensional systems, thus it may seem less feasible at first glance. Here we show that such infinite-dimensional systems can be implemented with quantum optical methods, and propose an experimental scheme using Mach-Zehnder interferometer.", "revisions": [ { "version": "v1", "updated": "2019-09-21T18:29:22.000Z" } ], "analyses": { "keywords": [ "infinite-dimensional systems", "optical implementation", "unconditionally secure quantum bit commitment", "qbc protocol", "first glance" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }