论文标题
使用量子自动编码器基于通用检测的误差减轻
Generic detection-based error-mitigation using quantum autoencoders
论文作者
论文摘要
有效的减少误差技术要求最少的资源是量子信息处理的关键。我们建议使用基于检测的量子自动编码器来减轻量子错误的通用协议。在我们的协议中，量子数据被压缩到潜在子空间中，同时将错误留在外面，然后通过测量和选择后去除后者。与先前开发的方法相比，一方面我们的协议不需要额外的Qubits，另一方面，我们的协议具有近乎最佳的去索能力，在合理的要求下，在合理的要求下检测到的所有错误都可以去除潜在子空间之外，而子空间内部空间内的所有错误却无法删除。因此，我们基于检测的量子自动编码器对于近期量子设备特别有用，在近期量子设备中，可控量子的限制是有限的，而降低降噪非常重要。
Efficient error-mitigation techniques demanding minimal resources is key to quantum information processing. We propose a generic protocol to mitigate quantum errors using detection-based quantum autoencoders. In our protocol, the quantum data are compressed into a latent subspace while leaving errors outside, the latter of which is then removed by a measurement and post-selection. Compared to previously developed methods, our protocol on the one hand requires no extra qubits, and on the other hand has a near-optimal denoising power, in which under reasonable requirements all errors detected outside of the latent subspace can be removed, while those inside the subspace cannot be removed by any means. Our detection-based quantum autoencoders are therefore particularly useful for near-term quantum devices in which controllable qubits are limited while noise reduction is important.
