论文标题
在各个平台上测试量子错误校正代码
Testing a Quantum Error-Correcting Code on Various Platforms
论文作者
论文摘要
量子误差校正在易耐故障量子信息处理中起重要作用。通常很难在实验上意识到量子误差校正，因为它需要高保真度的多个量子和量子门。在这里，我们为检测到的振幅阻尼通道提出了一个简单的量子误差校正代码。该代码仅需要两个量子位。我们在光学平台，IBM Q系统和核磁共振系统上实施编码，通道和恢复。对于所有这些系统，当阻尼率超过一定阈值时，出现误差校正优势。我们比较了使用这些量子信息处理系统的功能，并证明了对当前量子计算平台上量子误差校正的优势。
Quantum error correction plays an important role in fault-tolerant quantum information processing. It is usually difficult to experimentally realize quantum error correction, as it requires multiple qubits and quantum gates with high fidelity. Here we propose a simple quantum error-correcting code for the detected amplitude damping channel. The code requires only two qubits. We implement the encoding, the channel, and the recovery on an optical platform, the IBM Q System, and a nuclear magnetic resonance system. For all of these systems, the error correction advantage appears when the damping rate exceeds some threshold. We compare the features of these quantum information processing systems used and demonstrate the advantage of quantum error correction on current quantum computing platforms.
