{ "id": "quant-ph/0604103", "version": "v3", "published": "2006-04-14T05:50:18.000Z", "updated": "2006-05-03T06:52:45.000Z", "title": "A novel interferometer to beat the standard quantum limit using optical transverse modes in multimode waveguide", "authors": [ "Jian Fu" ], "comment": "9 pages, 3 figures,some errors corrected", "categories": [ "quant-ph" ], "abstract": "We propose a novel interferometer by using optical transverse modes in multimode waveguide that can beat the standard quantum limit. In the scheme, the classical simulation of $N$-partical quantum entangled states is generated by using $N$ independent classical fields and linear optical elements. Similar to the quantum-enhanced measurements, the classical simulation can also achieve $\\sqrt{N}$ enhancement over the precision of the measurement $N$ times for independent fields. Due to only using classical fields and linear optical elements, the scheme can be realized much more easily.", "revisions": [ { "version": "v3", "updated": "2006-05-03T06:52:45.000Z" } ], "analyses": { "keywords": [ "standard quantum limit", "optical transverse modes", "novel interferometer", "multimode waveguide", "linear optical elements" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006quant.ph..4103F" } } }