论文标题
在0.5 k的硅双量子点中的奇偶校验和单线 - 三个高保真读数
Parity and singlet-triplet high fidelity readout in a silicon double quantum dot at 0.5 K
论文作者
论文摘要
我们展示了单线读数和奇偶校验读数，允许区分T0和偏光三重状态。我们获得了高保真自旋读数，平均保真度超过$ 99.9 \％$ $ $ $ 20〜μ $ s，$ 99 \％$ $ $ 4〜μ $ S在$ 0.5〜K $的温度下。我们将单点状态初始化为单个点，其保真度高于$ 99 \％$，并将两个电子分开，同时使用$ a \ 95.6 \％$ fidelity保持相同的旋转状态。
We demonstrate singlet-triplet readout and parity readout allowing to distinguish T0 and the polarized triplet states. We achieve high fidelity spin readout with an average fidelity above $99.9\%$ for a readout time of $20~μ$s and $99\%$ for $4~μ$s at a temperature of $0.5~K$. We initialize a singlet state in a single dot with a fidelity higher than $99\%$ and separate the two electrons while keeping the same spin state with $a \approx 95.6\%$ fidelity.
