Entangling qubit registers via many-body states of ultracold atoms
| Autor: | Melko, R. G., Herdman, C. M., Iouchtchenko, D., Roy, P. -N., Del Maestro, A. |
|---|---|
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 93, 042336 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.93.042336 |
| Popis: | 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. Comment: 5 pages, 4 figures; typos fixed |
| Databáze: | arXiv |
| Externí odkaz: |
|