Dynamical suppression of 1/f noise processes in qubit systems.
Dynamical suppression of 1/f noise processes in qubit systems.
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DOI：
10.1103/physrevlett.92.117905
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发表时间：
2003-12
影响因子：
8.6
通讯作者：
L. Faoro;L. Viola
中科院分区：
文献类型：
--
作者：
L. Faoro;L. Viola
我们调查的能力，动态解耦技术，以减少从现实环境中产生1/f噪声的退相干。噪声分布中低频模式的优势允许去相干场景，其中相对较慢的控制速率足以实现大幅改善。然而，实际的品质因数对动态特性的细节非常敏感，解耦性能可能会因非高斯噪声和/或高频工作点而恶化。我们的结果是有希望的强大的固态量子比特和超越。
We investigate the capability of dynamical decoupling techniques to reduce decoherence from a realistic environment generating 1/f noise. The predominance of low frequency modes in the noise profile allows for decoherence scenarios where relatively slow control rates suffice for a drastic improvement. However, the actual figure of merit is very sensitive to the details of the dynamics, with decoupling performance which may deteriorate for non-Gaussian noise and/or high frequency working points. Our results are promising for robust solid-state qubits and beyond.