Fast noise-resistant control of donor nuclear spin qubits in silicon

Article

关键词: QUANTUM;    FIDELITY;    PULSES;   

DOI  :  10.1103/PhysRevB.101.205307

来源: SCIE

【 摘 要 】

A high degree of controllability and long coherence time make the nuclear spin of a phosphorus donor in isotopically purified silicon a promising candidate for a quantum bit. However, long-distance two-qubit coupling and fast, robust gates remain outstanding challenges for these systems. Here, following recent proposals for long-distance coupling via dipole-dipole interactions, we present a simple method to implement fast, high-fidelity arbitrary single- and two-qubit gates in the absence of charge noise. Moreover, we provide a method to make the single-qubit gates robust to moderate levels of charge noise to well within an error bound of 10(-3).

【 授权许可】

Free