2004/03/26 by R. Garcia-Patron Sanchez, J. Fiurasek, N. J. Cerf +3 · 2 citations
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physrevlett.93.130409
published as Phys. Rev. Lett. 93, 130409 (2004). · 4 pages RevTex, 2 figures
arxiv created 2004/03/26 · arxiv updated 2009/12/01
We propose a feasible optical setup allowing for a loophole-free Bell test with efficient homodyne detection. A non-gaussian entangled state is generated from a two-mode squeezed vacuum by subtracting a single photon from each mode, using beamsplitters and standard low-efficiency single-photon detectors. A Bell violation exceeding 1% is achievable with 6-dB squeezed light and an homodyne efficiency around 95%. A detailed feasibility analysis, based upon the recent generation of single-mode non-gaussian states, confirms that this method opens a promising avenue towards a complete experimental Bell test.