TY  - JOUR
AU  - Dada, Adetunmise C.
AU  - Leach, Jonathan
AU  - Buller, Gerald S.
AU  - Padgett, Miles J.
AU  - Andersson, Erika
PY  - 2011
DA  - 2011//
TI  - Experimental high-dimensional two-photon entanglement and violations of generalized Bell inequalities
T2  - Nat. Phys.
JO  - Nature Physics
SP  - 677
EP  - 680
VL  - 7
IS  - 9
KW  - fromIPMRAS
AB  - Quantum entanglement plays a vital role in many quantum-information and communication tasks. Entangled states of higher-dimensional systems are of great interest owing to the extended possibilities they provide. For example, they enable the realization of new types of quantum information scheme that can offer higher-information-density coding and greater resilience to errors than can be achieved with entangled two-dimensional systems (see ref. and references therein). Closing the detection loophole in Bell test experiments is also more experimentally feasible when higher-dimensional entangled systems are used. We have measured previously untested correlations between two photons to experimentally demonstrate high-dimensional entangled states. We obtain violations of Bell-type inequalities generalized to d-dimensional systems up to d=12. Furthermore, the violations are strong enough to indicate genuine 11-dimensional entanglement. Our experiments use photons entangled in orbital angular momentum, generated through spontaneous parametric down-conversion, and manipulated using computer-controlled holograms.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=828), last updated on Sat, 12 May 2012 15:33:27 -0500
ID  - Dada_etal2011
ER  -