论文标题
在IBM的20个Qubit Quantum计算机上展示NISQ时代的挑战
Demonstrating NISQ Era Challenges in Algorithm Design on IBM's 20 Qubit Quantum Computer
论文作者
论文摘要
随着超导速度的技术继续从技术发展，量子算法从理论抽象到物理实施的实现需要了解量子电路构造以及硬件限制。在这项研究中，我们介绍了IBM 20量“ Poughkeepsie”架构实验的结果，目的是展示设计量子算法时出现的各种量子质量和挑战。其中包括测量$ t_1 $和$ t_2 $连贯的时间，门忠诚度，顺序CNOT门，用于处理Ancilla Qubits的技术，最后是CCNOT和QFT $^{\ Dagger} $ Circuits，在几个不同的Qubit地质上实现。我们的结果表明，通过使用交换门或其他Ancilla Qubits来改善量子电路的各种技术，这些技术必须补偿有限的连接性。
As superconducting qubits continue to advance technologically, the realization of quantum algorithms from theoretical abstraction to physical implementation requires knowledge of both quantum circuit construction as well as hardware limitations. In this study we present results from experiments run on IBM's 20-qubit `Poughkeepsie' architecture, with the goal of demonstrating various qubit qualities and challenges that arise in designing quantum algorithms. These include experimentally measuring $T_1$ and $T_2$ coherence times, gate fidelities, sequential CNOT gates, techniques for handling ancilla qubits, and finally CCNOT and QFT$^{\dagger}$ circuits implemented on several different qubit geometries. Our results demonstrate various techniques for improving quantum circuits which must compensate for limited connectivity, either through the use of SWAP gates or additional ancilla qubits.
