An experimental proposal to test dynamic quantum non-locality with single-atom interferometry
Laboratory of Quantum Information Technology, School of Physics and Telecommunication Engineering, South China Normal University - Guangzhou, 510006, China
2 Department of Physics and MCTP, University of Michigan - Ann Arbor, MI 48109, USA
Accepted: 13 April 2011
Quantum non-locality based on the well-known Bell inequality is of kinematic nature. A different type of quantum non-locality, the non-locality of the quantum equation of motion, is recently put forward with connection to the Aharonov-Bohm effect (Popescu S., Nat. Phys., 6 (2010) 151). Evolution of the displacement operator provides an example to manifest such dynamic quantum non-locality. We propose an experiment using single-atom interferometry to test such dynamic quantum non-locality. We show how to measure evolution of the displacement operator with cold atoms in a spin-dependent optical lattice potential and discuss signature to identify dynamic quantum non-locality under a realistic experimental setting.
PACS: 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 03.65.Vf – Phases: geometric; dynamic or topological / 03.75.Dg – Atom and neutron interferometry
© EPLA, 2011