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

Moro, F, Fielding, AJ, Turyanska, L and Patanè, A (2019) Realization of Universal Quantum Gates with Spin-Qudits in Colloidal Quantum Dots. Advanced Quantum Technologies. ISSN 2511-9044

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Abstract

We exploit hyperfine interactions in a single Mn-ion confined in a quantum dot (QD) to create a qudit, i.e. a multi-level quantum-bit system, with well-defined, addressable and robust set of spin states for the realization of universal quantum gates. We generate and probe an arbitrary superposition of states between selected hyperfine energy level pairs 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 integration of qudits in scalable quantum circuit architectures beyond solid state electron spin qubits.

Item Type: Article
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., which has been published in final form at https://doi.org/10.1002/qute.201900017. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QD Chemistry
Divisions: Pharmacy & Biomolecular Sciences
Publisher: Wiley
Date Deposited: 08 Jul 2019 08:51
Last Modified: 08 Jul 2019 09:30
URI: http://researchonline.ljmu.ac.uk/id/eprint/10992

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