Entanglement between Lowly and Highly Lying Atomic Spin Waves
arXiv:1512.02772 · doi:10.1103/PhysRevA.94.052326
Abstract
Establishing a quantum interface between different physical systems is of special importance for developing the practical versatile quantum networks. Entanglement between low- and high-lying atomic spin waves is essential for building up Rydberg-based quantum information engineering, otherwhile be more helpful to study the dynamics behavior of entanglement under external pertur- bations. Here, we report on the successful storage of a single photon as a high-lying atomic spin wave in quantum regime. Via storing a K-vector entanglement between single photon and lowly lying spin wave, we thereby experimentally realize the entanglement between low- and high-lying atomic spin waves in two separated atomic systems. This makes our experiment the primary demonstration of Rydberg quantum memory of entanglement, making a primary step toward the construction of a hybrid quantum interface.
Final version
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Cited by in corpus (6)
- Highly-Efficient Quantum Memory for Polarization Qubits in a Spatially-Multiplexed Cold Atomic Ensemble
- High-speed noise-free optical quantum memory
- Single-atom single-photon coupling facilitated by atomic-ensemble dark-state mechanisms
- Coherent spin-wave processor of stored optical pulses
- Experimental demonstration of switching entangled photons based on the Rydberg blockade effect
- Size-Reduction of Rydberg collective excited states in cold atomic system