Addressed qubit manipulation in radio-frequency dressed lattices

Sinuco-León, G A and Garraway, B M (2016) Addressed qubit manipulation in radio-frequency dressed lattices. New Journal of Physics, 18 (3). 035009. ISSN 1367-2630

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Precise control over qubits encoded as internal states of ultracold atoms in arrays of potential wells is a key element for atomtronics applications in quantum information, quantum simulation and atomic microscopy. Here we theoretically study atoms trapped in an array of radio-frequency dressed potential wells and propose a scheme for engineering fast and high-fidelity single-qubit gates with low error due to cross-talk. In this proposal, atom trapping and qubit manipulation relies exclusively on long-wave radiation making it suitable for atom-chip technology. We demonstrate that selective qubit addressing with resonant microwaves can be programmed by controlling static and radio-frequency currents in microfabricated conductors. These results should enable studies of neutral-atom quantum computing architectures, powered by low-frequency electromagnetic fields with the benefit of simple schemes for controlling individual qubits in large ensembles.

Item Type: Article
Keywords: quantum technology, quantum optics
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
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Depositing User: Barry Garraway
Date Deposited: 14 Mar 2016 09:48
Last Modified: 06 Mar 2017 09:49

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Project NameSussex Project NumberFunderFunder Ref
Devices based on Entanglement in Cold Arrays of Trapped AtomsG0340EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/I010394/1