Einstein-Podolsky-Rosen paradox in a hybrid bipartite system
arXiv:1607.05865 · doi:10.1364/OPTICA.4.000272
Abstract
Entanglement of light and matter is an essential resource for effective quantum engineering. In particular, collective states of atomic ensembles are robust against decoherence while preserving the possibility of strong interaction with quantum states of light. While previous approaches to continous-variable quantum interfaces relied on quadratures of light, here we present an approach based on spatial structure of light-atom entanglement. We create and characterize a 12-dimensional entangled state exhibiting quantum correlations between a photon and an atomic ensemble in position and momentum bases. This state allows us to demonstrate the original Einstein-Podolsky-Rosen (EPR) paradox with two different entities, with an unprecedented delay time of 6 s between generation of entanglement and detection of the atomic state.
4 pages, 3 figures, 1 table, supplement available at https://doi.org/10.1364/OPTICA.4.000272
References in corpus (11)
- Multipartite Einstein-Podolsky-Rosen steering and genuine tripartite entanglement with optical networks
- Imaging high-dimensional spatial entanglement with a camera
- Quantum memory for entangled two-mode squeezed states
- Einstein-Podolsky-Rosen paradox in twin images
- Realization of the purely spatial Einstein-Podolsky-Rosen paradox in full-field images of spontaneous parametric down conversion
- Continuous variable quantum computation with spatial degrees of freedom of photons
- Experimental access to higher-dimensional entangled quantum systems using integrated optics
- Continuous-Variable Quantum Computing in Optical Time-Frequency Modes using Quantum Memories
- Einstein-Podolsky-Rosen Entanglement of Narrowband Photons from Cold Atoms
- Storage of hyperentanglement in a solid-state quantum memory
- Time domain Einstein-Podolsky-Rosen correlation
Cited by in corpus (8)
- Wavevector multiplexed quantum memory via spatially-resolved single-photon detection
- Hot atomic vapors for nonlinear and quantum optics
- Quantifying high-dimensional spatial entanglement with a single-photon-sensitive time-stamping camera
- Spatial squeezing in bright twin beams generated with four-wave mixing: constraints on characterization with an EMCCD camera
- Spatial spin-wave modulator for quantum memory assisted adaptive measurements
- Optimized experimental optical tomography of quantum states of room-temperature alkali-metal vapor
- Generation and characterization of discrete spatial entanglement in multimode nonlinear waveguides
- Certifying spatial entanglement between non-degenerate photon pairs with a camera