Due to their long coherence times, nuclear spins have gained considerable attention as physical qubits. Two-qubit gates between nuclear spins of distinct resonance frequencies can be mediated by electron spins, usually employing a sequence of electron-nuclear gates. Here we present a different approach inspired by, but not limited to, NV centers in diamond and discuss possible applications. To this end we generalize external electron spin control sequences for nuclear spin initialization and hyperpolarization to achieve the simultaneous control of distinct nuclear spins via an electron spin. This approach results in efficient entangling gates that, compared to standard techniques, reduce the gate time by more than 50% when the gate time is limited by off-resonant coupling to other spins and by up to 22% when the gate time is limited by small electron-nuclear coupling.

中文翻译：

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用于快速高保真量子门的并行选择性核自旋寻址

由于它们的相干时间长，核自旋作为物理量子位受到了广泛的关注。具有不同共振频率的核自旋之间的两个量子位门可以通过电子自旋来介导，通常使用一系列电子核门。在这里，我们提出了一种受钻石行业NV中心启发但不限于的不同方法，并讨论了可能的应用。为此，我们概括了用于核自旋初始化和超极化的外部电子自旋控制序列，以通过电子自旋实现对不同核自旋的同时控制。与标准技术相比，这种方法可产生高效的纠结门