Robust gates with spin-locked superconducting qubits
Ido Zuk, Daniel Cohen, Alexey V. Gorshkov, Alex Retzker
DOI 10.1103/PhysRevResearch.6.013217 · Physical Review Research
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Abstract
Dynamical decoupling is effective in reducing gate errors in most quantum computation platforms and is therefore projected to play an essential role in future fault-tolerant constructions. In superconducting circuits, however, it has proven difficult to utilize the benefits of dynamical decoupling. In this work, we present a theoretical proposal that incorporates a continuous version of dynamical decoupling, namely, spin locking, with a coupler-based CZ gate for transmons and provide analytical and numerical results that demonstrate its effectiveness.
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