Quantum Controlled-Not Gate Operation and Complete Bell-State Analysis Using Hybrid Quantum Circuits

• DOI: 10.1007/s10773-013-1802-1
• Publication Date: 2013-09-19T07:45:55Z
• Authors: Ling-yan He; Cong Cao; Xin Tong; Chuan Wang
• Keywords: Controlled NOT gate; Quantum circuit; One-way quantum computer

Here we propose a hybrid quantum circuit for achieving the quantum controlled-not (CNOT) gate operation on a photon-spin hybrid state. The hybrid quantum circuit consists of a nitrogen-vacancy (N-V) center and microtoroidal resonator coupling system, and a single photon waveguide. We implement the complete Bell state analysis using the proposed circuit. This proposed hybrid quantum circuit could enable a high fidelity of qubit manipulation and allows the feasible with the current experimental technologies.