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Open Quantum Systems Decoherence Quantum Simulation Quantum Chemistry

Reversing Hydride Ion Formation in Quantum Information Experiments with Be^+

arXiv
Authors: Brian C. Sawyer, Justin G. Bohnet, Joseph W. Britton, John J. Bollinger

Year

2014

Paper ID

46144

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

We demonstrate photodissociation of BeH^+ ions within a Coulomb crystal of thousands of 9Be^+ ions confined in a Penning trap. Because BeH^+ ions are created via exothermic reactions between trapped, laser-cooled Be^+$2P3/2$ and background H2 within the vacuum chamber, they represent a major contaminant species responsible for infidelities in large-scale trapped-ion quantum information experiments. The rotational-state-insensitive dissociation scheme described here makes use of 157 nm photons to produce Be^+ and H as products, thereby restoring Be^+ ions without the need for reloading. This technique facilitates longer experiment runtimes at a given background H2 pressure, and may be adapted for removal of MgH^+ and AlH^+ impurities.

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  • We demonstrate photodissociation of BeH^+ ions within a Coulomb crystal of thousands of ^9Be^+ ions confined in a Penning trap.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1412.0634 [2] arXiv https://arxiv.org/abs/1412.0634 [3] Publisher https://arxiv.org/abs/1412.0634

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