Quantum control for high-fidelity multi-qubit gates
Quantum control for high-fidelity multi-qubit gates
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DOI：
10.1088/1367-2630/aae79a
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发表时间：
2018-05
影响因子：
3.3
通讯作者：
R. Spiteri;M. Schmidt;J. Ghosh;E. Zahedinejad;B. Sanders
中科院分区：
文献类型：
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作者：
R. Spiteri;M. Schmidt;J. Ghosh;E. Zahedinejad;B. Sanders
纠错的量子控制对于量子计算机的实际应用至关重要。我们解决单次多量子比特门的量子最优控制问题，将其作为一个可行性问题的哈密顿模型，然后用标准的全局优化软件解决。我们的方法产生了比以前更快的高保真度（>99.99%）单发三量子比特门控制，并且它还使我们能够解决快速高保真度四量子比特门的量子控制问题。
Quantum control for error correction is critical for the practical use of quantum computers. We address quantum optimal control for single-shot multi-qubit gates by framing it as a feasibility problem for the Hamiltonian model that is then solved with standard global optimization software. Our approach yields faster high-fidelity (>99.99%) single-shot three-qubit-gate control than obtained previously, and it has also enabled us to solve the quantum-control problem for a fast high-fidelity four-qubit gate.