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arXiv · 2203.03347

Quantum state transfer between a frequency-encoded photonic qubit and a quantum dot spin in a nanophotonic waveguide

Ming Lai Chan·Ziv Aqua·Alexey Tiranov·Barak Dayan·Peter Lodahl·Anders S. Sørensen
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Abstract

We propose a deterministic yet fully passive scheme to transfer the quantum state from a frequency-encoded photon to the spin of a quantum-dot mediated by a nanophotonic waveguide. We assess the quality of the state transfer by studying the effects of all relevant experimental imperfections on the state-transfer fidelity. We show that a transfer fidelity exceeding 95% is achievable for experimentally realistic parameters. Our work sets the stage for deterministic solid-state quantum networks tailored to frequency-encoded photonic qubits.

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Ming Lai Chan, Ziv Aqua, Alexey Tiranov, Barak Dayan, Peter Lodahl, Anders S. Sørensen. 2022-03-07. Quantum state transfer between a frequency-encoded photonic qubit and a quantum dot spin in a nanophotonic waveguide. https://doi.org/10.1103/physreva.105.062445

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