Error-detected N-photon cluster state generation based on the controlled-phase gate using a quantum dot in an optical microcavity

Liang, Lei-Xia; Zhang, Yuan-Xia; Zhang, Mei

doi:10.1007/s11467-019-0931-2

Cited by 4 publications

(1 citation statement)

References 130 publications

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“…Compared to the best-known classical information processing, quantum information processing (QIP) [1], adhered to the principles of quantum mechanics, has great advantages in secure communication [2][3][4][5][6][7], algorithm [8][9][10], and machine learning [11][12][13][14], due to its great security and super-fast computing speed. Basic quantum logic gates are the building block of quantum computing, so they are regarded as an important unit of QIP.…”

Section: Introductionmentioning

confidence: 99%

Error-detected three-photon hyperparallel Toffoli gate with state-selective reflection

Fan

2022

Front. Phys.

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We present an error-detected hyperparallel Toffoli (hyper-Toffoli) gate for a three-photon system based on the interface between polarized photon and cavity-nitrogen-vacancy(NV) center system. This hyper-Toffoli gate can be used to perform double Toffoli gate operations simultaneously on both the polarization and spatial-mode degrees of freedom (DoFs) of a three-photon system with a low decoherence, shorten operation time, and less quantum resources required, in compared with those on two independent three-photon systems in one DoF only. As the imperfect cavity-NV-center interactions are transformed into the detectable failures rather than infidelity based on the heralding mechanism of detectors, a near-unit fidelity of the quantum hyper-Toffoli gate can be implemented. By recycling the procedures, the efficiency of our protocol for the hyper-Toffoli gate is improved further. Meanwhile, the evaluation of gate performance with achieved experiment parameters shows that it is feasible with current experimental technology and provides a promising building block for quantum compute.

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Section: Introductionmentioning

confidence: 99%

Error-detected three-photon hyperparallel Toffoli gate with state-selective reflection

Fan

2022

Front. Phys.

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Deterministic Preparation of a Hyper‐Entangled Three‐Photon Asymmetric W State Assisted by the Single‐Sided QD‐Cavity System

Dong

Yang

et al. 2022

Adv Quantum Tech

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Hyper‐entangled states that encode qubits in multiple degrees of freedom of a quantum system can provide a decisive advantage in quantum information processing, such as improving the capacity of communication and speeding up the computation. Assisted by quantum dots in single‐sided optical microcavities, nonlinear interaction of optical circular polarizations is induced and a deterministic scheme for preparing a three‐photon hyper‐entangled asymmetric W state with polarization degree of freedom and spatial degree of freedom is proposed. The preparing process is composed of three steps: the preparation of a three‐photon polarization entangled asymmetric W state; the preparation of a three‐photon spatial entangled asymmetric W state; the preparation of a three‐photon hyper‐entangled asymmetric W state. It can be generalized to generate a three‐photon general W state according to practical requirement.

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Two-partite entanglement purification assisted by quantum-dot spins inside single-sided optical microcavities

Xiu,

Liu,

Wang

et al. 2024

Quantum Inf Process

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Error-detected N-photon cluster state generation based on the controlled-phase gate using a quantum dot in an optical microcavity

Cited by 4 publications

References 130 publications

Error-detected three-photon hyperparallel Toffoli gate with state-selective reflection

Error-detected three-photon hyperparallel Toffoli gate with state-selective reflection

Deterministic Preparation of a Hyper‐Entangled Three‐Photon Asymmetric W State Assisted by the Single‐Sided QD‐Cavity System

Two-partite entanglement purification assisted by quantum-dot spins inside single-sided optical microcavities

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