Spatial entanglement patterns and Einstein-Podolsky-Rosen steering in a Bose-Einstein condensate
arXiv:1708.02534 · doi:10.1126/science.aao1850
Abstract
Many-particle entanglement is a fundamental concept of quantum physics that still presents conceptual challenges. While spin-squeezed and other nonclassical states of atomic ensembles were used to enhance measurement precision in quantum metrology, the notion of entanglement in these systems remained controversial because the correlations between the indistinguishable atoms were witnessed by collective measurements only. Here we use highresolution imaging to directly measure the spin correlations between spatially separated parts of a spin-squeezed Bose-Einstein condensate. We observe entanglement that is strong enough for Einstein-Podolsky-Rosen steering: we can predict measurement outcomes for non-commuting observables in one spatial region based on a corresponding measurement in another region with an inferred uncertainty product below the Heisenberg relation. This could be exploited for entanglement-enhanced imaging of electromagnetic field distributions and quantum information tasks beyond metrology.
References in corpus (9)
- Entanglement detection
- Steering, Entanglement, Nonlocality, and the EPR Paradox
- Nonlinear atom interferometer surpasses classical precision limit
- Observation of one-way Einstein-Podolsky-Rosen steering
- Scalable Spin Squeezing for Quantum-Enhanced Magnetometry with Bose-Einstein Condensates
- Spatially distributed multipartite entanglement enables Einstein-Podolsky-Rosen steering of atomic clouds
- Strong saturation absorption imaging of dense clouds of ultracold atoms
- Entanglement between two spatially separated atomic modes
- Classifying directional Gaussian quantum entanglement, EPR steering and discord
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