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Spin-photon module for scalable network architecture in quantum dots.

ABSTRACT: Reliable information transmission between spatially separated nodes is fundamental to a network architecture for scalable quantum technology. Spin qubit in semiconductor quantum dots is a promising candidate for quantum information processing. However, there remains a challenge to design a practical path from the existing experiments to scalable quantum processor. Here we propose a module consisting of spin singlet-triplet qubits and single microwave photons. We show a high degree of control over interactions between the spin qubit and the quantum light field can be achieved. Furthermore, we propose preparation of a shaped single photons with an efficiency of 98%, and deterministic quantum state transfer and entanglement generation between remote nodes with a high fidelity of 90%. This spin-photon module has met the threshold of particular designed error-correction protocols, thus provides a feasible approach towards scalable quantum network architecture.

SUBMITTER: Zhu XY

PROVIDER: S-EPMC7081348 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Spin-photon module for scalable network architecture in quantum dots.

Zhu Xing-Yu XY Tu Tao T Guo Ao-Lin AL Zhou Zong-Quan ZQ Guo Guang-Can GC Li Chuan-Feng CF

Scientific reports 20200319 1

Reliable information transmission between spatially separated nodes is fundamental to a network architecture for scalable quantum technology. Spin qubit in semiconductor quantum dots is a promising candidate for quantum information processing. However, there remains a challenge to design a practical path from the existing experiments to scalable quantum processor. Here we propose a module consisting of spin singlet-triplet qubits and single microwave photons. We show a high degree of control ove ...[more]

PMID: 32193481

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