High-fidelity $CCΦ$ gates via radio-frequency-induced Förster resonances

• URL: http://arxiv.org/abs/2307.12789v2
• Date: Mon, 3 Jun 2024 14:32:32 GMT
• Title: High-fidelity $CCΦ$ gates via radio-frequency-induced Förster resonances
• Authors: I. N. Ashkarin, S. Lepoutre, P. Pillet, I. I. Beterov, I. I. Ryabtsev, P. Cheinet,
• Abstract summary: We present a novel $CCPhi$ quantum phase gate protocol based on radio-frequency-induced F"orster resonant interactions. We achieve theoretical gate fidelities of up to $99.7 %$ in a cryogenic environment, thus showing the protocol compatibility with modern quantum error correction techniques.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Registers of trapped neutral atoms, excited to Rydberg states to induce strong long-distance interactions, are extensively studied for direct applications in quantum computing. Here, we present a novel $CC\Phi$ quantum phase gate protocol based on radio-frequency-induced F\"{o}rster resonant interactions in the array of highly excited $^{87}$Rb atoms. The extreme controllability of interactions provided by RF field application enables high-fidelity and robust gate performance for a wide range of parameters of the atomic system, as well as it significantly facilitates the experimental implementation of the gate protocol. Taking into account finite Rydberg states lifetimes and atomic position control imperfections, we achieve theoretical gate fidelities of up to $99.7 \%$ in a cryogenic environment, thus showing the protocol compatibility with modern quantum error correction techniques.

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