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arXiv · 2409.09991

Ion-mediated interaction and controlled phase gate operation between two atomic qubits

Subhra Mudli·Subhanka Mal·Sinchan Snigdha Rej·Anushree Dey·Bimalendu Deb
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Abstract

We propose a toy model of ion-atom hybrid quantum system for quantum computing. We show that when two atomic qubits in two largely separated optical tweezers interact with a single trapped ion through Rydberg excitation of the atoms, there exists an ion-mediated atom-atom interaction which exceeds the direct interatomic interaction at large separation. We employ this mediated interaction to demonstrate two-qubit control phase gate operation with 97\% fidelity by addressing the individual atomic qubits with lasers.

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Subhra Mudli, Subhanka Mal, Sinchan Snigdha Rej, Anushree Dey, Bimalendu Deb. 2024-09-16. Ion-mediated interaction and controlled phase gate operation between two atomic qubits. https://doi.org/10.1103/physreva.110.062618

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