Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
Phys Rev Lett. 2011 Jun 17;106(24):240501. doi: 10.1103/PhysRevLett.106.240501. Epub 2011 Jun 14.
Dynamical decoupling (DD) is a popular technique for protecting qubits from the environment. However, unless special care is taken, experimental errors in the control pulses used in this technique can destroy the quantum information instead of preserving it. Here, we investigate techniques for making DD sequences robust against different types of experimental errors while retaining good decoupling efficiency in a fluctuating environment. We present experimental data from solid-state nuclear spin qubits and introduce a new DD sequence that is suitable for quantum computing and quantum memory.
动态去耦（DD）是保护量子比特免受环境干扰的一种常用技术。然而，除非特别小心，否则该技术中使用的控制脉冲的实验误差可能会破坏量子信息，而不是保存它。在这里，我们研究了在保留波动环境中良好去耦效率的同时，使 DD 序列对不同类型的实验误差具有鲁棒性的技术。我们给出了固态核自旋量子比特的实验数据，并介绍了一种新的适用于量子计算和量子存储的 DD 序列。
