Efficient fault-tolerant implementations of non-Clifford gates with reconfigurable atom arrays
arxiv(2023)
摘要
To achieve scalable universal quantum computing, we need to implement a
universal set of logical gates fault-tolerantly, for which the main difficulty
lies with non-Clifford gates. We demonstrate that several characteristic
features of the reconfigurable atom array platform are inherently well-suited
for addressing this key challenge, potentially leading to significant
advantages in fidelity and efficiency. Specifically, we consider a series of
different strategies including magic state distillation, concatenated code
array, and fault-tolerant logical multi-controlled-Z gates, leveraging key
platform features such as non-local connectivity, parallel gate action,
collective mobility, and native multi-controlled-Z gates. Our analysis
provides valuable insights into the efficient experimental realization of
logical gates, serving as a guide for the full-cycle demonstration of
fault-tolerant quantum computation with reconfigurable atom arrays.
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