On-chip spin-photon entanglement based on single-photon scattering

Chan, Ming Lai; Tiranov, Alexey; Appel, Martin Hayhurst; Wang, Ying; Midolo, Leonardo; Scholz, Sven-Bodo; Wieck, Andreas D.; Ludwig, Arne; Sørensen, Anders Christian; Lodahl, Peter

doi:10.48550/arxiv.2205.12844

Cited by 1 publication

(2 citation statements)

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“…However, in quantum dot systems, Bodey et al experimentally demonstrated full SU(2) spin control with over 98% π-rotation fidelity [63]. Very recently, Chan et al reported over 96% fidelity in realizing a spin-photon entangling gate [54]. Rong et al reported the experimental implementation of single-and two-qubit gates in NV centers at room temperature with fidelities of 0.999 and 0.992, respectively [64].…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, realizing interactions between matter and photonic qubits implementing logic operations plays a key role in quantum technologies. Numerous works have been reported on spatially separated systems based on atom-photon and spin-photon interactions, such as by creating entanglement among distant qubits [47][48][49], preparing large-scale multipartite entanglement [50,51], observing entanglement sudden death (ESD) in two separate Jaynes-Cummings nodes [52], manipulating separate qubits in coupled resonators [53], experimentally demonstrating the entangling gate between a flying photonic qubit and a stationary quantum dot spin qubit on a chip [54], playing the MSG with distant players [39], deterministic expansion of W states [55], and a distributed physical setup based on flying photons and atomic memories [56].…”

Section: Introductionmentioning

confidence: 99%

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Prisoners’ Dilemma in a Spatially Separated System Based on Spin–Photon Interactions

et al. 2022

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Having access to ideal quantum mechanical resources, the prisoners’ dilemma can be ceased Here, we propose a distributed quantum circuit to allow spatially separated prisoners to play the prisoners’ dilemma game. Decomposing the circuit into controlled-Z and single-qubit gates only, we design a corresponding spin–photon-interaction-based physical setup within the reach of current technology. In our setup, spins are considered to be the players’ logical qubits, which can be realized via nitrogen-vacancy centers in diamond or quantum dots coupled to optical cavities, and the game is played via a flying photon realizing logic operations by interacting with the spatially separated optical cavities to which the spin qubits are coupled. We also analyze the effect of the imperfect realization of two-qubit gates on the game, and discuss the revival of the dilemma and the emergence of new Nash equilibria.

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Section: Discussionmentioning

confidence: 99%