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Quantum Foundations
Generation of a maximally entangled state using collective optical pumping
arXiv
Authors: M. Malinowski, C. Zhang, V. Negnevitsky, I. Rojkov, F. Reiter, T. -L. Nguyen, M. Stadler, D. Kienzler, K. K. Mehta, J. P. Home
Year
2021
Paper ID
63014
Status
Preprint
Abstract Read
~2 min
Abstract Words
83
Citations
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Abstract
We propose and implement a novel scheme for dissipatively pumping two qubits into a singlet Bell state. The method relies on a process of collective optical pumping to an excited level, to which all states apart from the singlet are coupled. We apply the method to deterministically entangle two trapped {}40Ca^+ ions with a fidelity of 93(1)\%. We theoretically analyze the performance and error susceptibility of the scheme and find it to be insensitive to a large class of experimentally relevant noise sources.
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- This paper contributes to the Quantum Foundations research area in the Quantum Articles archive.
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- We propose and implement a novel scheme for dissipatively pumping two qubits into a singlet Bell state.
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