On Bell measurements for teleportation

1998/09/30 by N. Lütkenhaus, J. Calsamiglia, K-A. Suominen · 3 citations
Physics and Astronomy · #quant-ph

paper · pdf · doi:10.1103/physreva.59.3295

published as Phys.Rev. A59 (1999) 3295 · 7 pages, 3 figures. Final version to appear in Phys.Rev. A

arxiv created 1999/01/28 · arxiv updated 2016/08/14

Abstract

In this paper we investigate the possibility to make complete Bell measurements on a product Hilbert space of two two-level bosonic systems. We restrict our tools to linear elements, like beam splitters and phase shifters, delay lines and electronically switched linear elements, photo-detectors, and auxiliary bosons. As a result we show that with these tools a never failing Bell measurement is impossible.

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