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Realization of Universal Quantum Gates with Spin-Qudits in Colloidal Quantum Dots

Moro, Fabrizio; Fielding, Alistair J.; Turyanska, Lyudmila; Patanè, Amalia

Authors

Fabrizio Moro

Alistair J. Fielding

Lyudmila Turyanska

Amalia Patanè



Abstract

Hyperfine interactions in a single Mn‐ion confined in a quantum dot (QD) are exploited to create a qudit, that is, a multilevel quantum‐bit system, with well‐defined, addressable, and robust set of spin states for the realization of universal quantum gates. An arbitrary superposition of states between selected hyperfine energy level pairs is generated and probed by using electron double resonance detected nuclear magnetic resonance (EDNMR). This enables the observation of Rabi oscillations and the experimental realization of NOT and √ SWAP universal quantum gates that are robust against decoherence. Our protocol for cyclical preparation, manipulation, and read‐out of logic gates offers opportunities for the integration of qudits in scalable quantum circuit architectures beyond solid state electron spin qubits.

Journal Article Type Article
Publication Date Jul 1, 2019
Journal Advanced Quantum Technologies
Print ISSN 2511-9044
Peer Reviewed Peer Reviewed
Article Number 1900017
Pages 1-6
APA6 Citation Moro, F., Fielding, A. J., Turyanska, L., & Patanè, A. (2019). Realization of Universal Quantum Gates with Spin-Qudits in Colloidal Quantum Dots. Advanced Quantum Technologies, 1-6. doi:10.1002/qute.201900017
DOI https://doi.org/10.1002/qute.201900017
Publisher URL https://onlinelibrary.wiley.com/doi/full/10.1002/qute.201900017
Additional Information This is the peer reviewed version of the following article: Moro, F. , Fielding, A. J., Turyanska, L. and Patanè, A. (2019), Realization of Universal Quantum Gates with Spin‐Qudits in Colloidal Quantum Dots. Adv. Quantum Technol. doi:10.1002/qute.201900017, which has been published in final form at https://onlinelibrary.w...0.1002/qute.201900017]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
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