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arXiv · 2010.14776

Realization of a deterministic quantum Toffoli gate with a single photon

Shihao Ru·Yunlong Wang·Min An·Feiran Wang·Pei Zhang·Fuli Li
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Abstract

Quantum controlled-logic gates, including controlled NOT gate and Toffoli gate, play critical roles in lots of quantum information processing schemes. We design and experimentally demonstrate deterministic Toffoli gate by utilizing orbital-angular-momentum and polarization degrees of freedom of a single photon. In addition, we generate Bell states by using the controlled NOT gate. The effective conversion rate of the Toffoli gate in our experiment is $(95.1\pm3.2)\%$. Furthermore, our experimental setup does not require any auxiliary photons and probabilistic post selections.

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Shihao Ru, Yunlong Wang, Min An, Feiran Wang, Pei Zhang, Fuli Li. 2020-10-28. Realization of a deterministic quantum Toffoli gate with a single photon. https://doi.org/10.1103/physreva.103.022606

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