%0 Journal Article
%T Conclusive quantum steering with superconducting transition-edge sensors
%A Smith, Devin H.
%A Gillett, Geoff
%A de Almeida, Marcelo P.
%A Branciard, Cyril
%A Fedrizzi, Alessandro
%A Weinhold, Till J.
%A Lita, Adriana
%A Calkins, Brice
%A Gerrits, Thomas
%A Wiseman, Howard M.
%A Nam, Sae Woo
%A White, Andrew G.
%J Nature Communications
%D 2012
%V 3
%N 625
%F Smith_etal2012
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=768), last updated on Sun, 06 May 2012 16:43:34 -0500
%X Quantum steering allows two parties to verify shared entanglement even if one measurement device is untrusted. A conclusive demonstration of steering through the violation of a steering inequality is of considerable fundamental interest and opens up applications in quantum communication. To date, all experimental tests with single-photon states have relied on post selection, allowing untrusted devices to cheat by hiding unfavourable events in losses. Here we close this 'detection loophole' by combining a highly efficient source of entangled photon pairs with superconducting transition-edge sensors. We achieve an unprecedented ~62% conditional detection efficiency of entangled photons and violate a steering inequality with the minimal number of measurement settings by 48 s.d.s. Our results provide a clear path to practical applications of steering and to a photonic loophole-free Bell test.
%K fromIPMRAS
%P 6