Storage of polarization-encoded cluster states in an atomic system

Abstract

We present a scheme for entanglement macroscopic atomic ensembles which are four spatially separate regions of an atomic cloud using cluster-correlated beams. We show that the cluster-type polarization-encoded entanglement could be mapped onto the long-lived collective ground state of the atomic ensembles, and the stored entanglement could be retrieved based on the technique of electromagnetically induced transparency. We also discuss the efficiency of, the lifetime of, and some quantitative restrictions to the proposed quantum memory.

7 pages, 4 figures

References in corpus (24)

• Experimental demonstration of quantum memory for light
• Experimental entanglement of six photons in graph states
• Mapping photonic entanglement into and out of a quantum memory
• Quantum memory for squeezed light
• High-speed linear optics quantum computing using active feed-forward
• Universal Approach to Optimal Photon Storage in Atomic Media
• Detecting Genuine Multipartite Entanglement with Two Local Measurements
• Experimental Analysis of a 4-Qubit Cluster State
• Entanglement Detection in the Stabilizer Formalism
• Photon storage in Lambda-type optically dense atomic media. II. Free-space model
• Photon storage in Lambda-type optically dense atomic media. I. Cavity model
• Memory-built-in quantum teleportation with photonic and atomic qubits
• Realization and characterization of a 2-photon 4-qubit linear cluster state
• Deterministic single photons via conditional quantum evolution
• Optimal light storage in atomic vapor
• Generation of high-fidelity four-photon cluster state and quantum-domain demonstration of one-way quantum computing
• Optimal light storage with full pulse shape control
• On experimental procedures for entanglement verification
• Efficient retrieval of a single excitation stored in an atomic ensemble
• Photon storage in Lambda-type optically dense atomic media. III. Effects of inhomogeneous broadening
• Photon storage in Lambda-type optically dense atomic media. IV. Optimal control using gradient ascent
• Towards deterministic optical quantum computation with coherently driven atomic ensembles
• Dark-State Polaritons in Single- and Double-$\Lambda$ Media
• Holographic storage of multiple coherence gratings in a Bose-Einstein condensate

Cited by in corpus (1)

• Storage and retrieval of continuous-variable polarization-entangled cluster states in atomic ensembles