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Entangling qubit registers via many-body states of ultracold atoms

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PhysRevA.93.042336.pdf (491.4 KB)

Date

2016-04-25

Authors

Melko, Roger
Herdman, Chris
Iouchtchenko, Dmitri
Roy, Pierre-Nicholas
Del Maestro, Adrian

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

Inspired by the experimental measurement of the Rényi entanglement entropy in a lattice of ultracold atoms by Islam et al. [Nature (London) 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.

Description

© 2016. American Physical Society, https://doi.org/10.1103/PhysRevA.93.042336

Keywords

ultracold atoms, entanglement, many-body physics

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URI

https://doi.org/10.1103/PhysRevA.93.042336
 http://hdl.handle.net/10012/13353

Collections

Waterloo Research
Chemistry