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arXiv · 1512.06462

Entangling qubit registers via many-body states of ultracold atoms

R. G. Melko·C. M. Herdman·D. Iouchtchenko·P. -N. Roy·A. Del Maestro
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Abstract

Inspired by the experimental measurement of the Renyi entanglement entropy in a lattice of ultracold atoms by Islam et al., [Nature 528, 77 (2015)] we propose a method to entangle two spatially-separated qubits using the quantum many-body state as a resource. Through local operations accessible in an experiment, entanglement is transferred to a qubit register from atoms at the ends of a one-dimensional chain. We compute the operational entanglement, which bounds the entanglement physically transferable from the many-body resource to the register, and discuss a protocol for its experimental measurement. Finally, we explore measures for the amount of entanglement available in the register after transfer, suitable for use in quantum information applications.

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R. G. Melko, C. M. Herdman, D. Iouchtchenko, P. -N. Roy, A. Del Maestro. 2015-12-30. Entangling qubit registers via many-body states of ultracold atoms. https://doi.org/10.1103/physreva.93.042336

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