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arXiv:2410.02562 · Physical Review Applied

Hidden anisotropy controls spin-photon entanglement in a charged quantum dot

Yu. M. Serov, A. I. Galimov, Dmitry S. Smirnov, Maxim V. Rakhlin, N. V. Leppenen, Grigorii V. Klimko, Sergey Sorokin, Irina Sedova, D. S. Berezina, Yuliya Salii, Marina M Kulagina, Yuriy Zadiranov, Sergey I. Troshkov, T. V. Shubina, Alexey A. Toropov

Published Apr 8, 2025• 4 citations
arXivHTMLPDF

Abstract

Measurement-based quantum computing, vital for scalable photonic quantum technologies, is limited by inefficient generation of high-fidelity cluster states from spin-photon entanglement in semiconductor quantum dots. This work explores the deep connections between quantum dot spin physics and quantum optics, leading to the discovery of strong anisotropy in the entanglement process and identification of optimal entanglement conditions to improve cluster-state fidelity. That insight enables improved cluster-state sources, advancing optical quantum computing and quantum networks.

DOI
10.1103/physrevapplied.23.044019

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