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4 March 2016 Satisfying the Einstein-Podolsky-Rosen criterion with massive particles
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Proceedings Volume 9764, Complex Light and Optical Forces X; 976408 (2016) https://doi.org/10.1117/12.2209557
Event: SPIE OPTO, 2016, San Francisco, California, United States
Abstract
In 1935, Einstein, Podolsky and Rosen (EPR) questioned the completeness of quantum mechanics by devising a quantum state of two massive particles with maximally correlated space and momentum coordinates. The EPR criterion qualifies such continuous-variable entangled states, as shown successfully with light fields. Here, we report on the production of massive particles which meet the EPR criterion for continuous phase/amplitude variables. The created quantum state of ultracold atoms shows an EPR parameter of 0.18(3), which is 2.4 standard deviations below the threshold of 1/4. Our state presents a resource for tests of quantum nonlocality with massive particles and a wide variety of applications in the field of continuous-variable quantum information and metrology.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Peise, I. Kruse, K. Lange, B. Lücke, L. Pezzè, J. Arlt, W. Ertmer, K. Hammerer, L. Santos, A. Smerzi, and C. Klempt "Satisfying the Einstein-Podolsky-Rosen criterion with massive particles", Proc. SPIE 9764, Complex Light and Optical Forces X, 976408 (4 March 2016); https://doi.org/10.1117/12.2209557
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