Realization of a deterministic quantum Toffoli gate with a single photon

• URL: http://arxiv.org/abs/2010.14776v3
• Date: Thu, 11 Feb 2021 15:54:40 GMT
• Title: Realization of a deterministic quantum Toffoli gate with a single photon
• Authors: Shihao Ru, Yunlong Wang, Min An, Feiran Wang, Pei Zhang, and Fuli Li
• Abstract summary: 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.
• Score: 4.121840022679671
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• 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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