论文标题
超导电路上的强大而快速的量子状态转移
Robust and Fast Quantum State Transfer on Superconducting Circuits
论文作者
论文摘要
量子计算对高精度量子操作的重要性附加了重要性，其中有必要具有高保真度的量子状态转移。在这里，我们提出了一种新方案，通过将现场电位添加到Qubit链中并扩大两端和链之间的耦合强度的比例，以实现高保真和长距离的量子状态转移。在数值模拟的情况下，在没有脱碳的情况下，9和11量子链的转移保真度分别为0.999和0.997。此外，我们给出了超导电路中量子状态转移的详细物理实现方案，并讨论了我们针对腐烂的提议的容忍度。因此，我们的方案将阐明具有长链和高保真量子状态转移的量子计算。
Quantum computation attaches importance to high-precision quantum manipulation, where the quantum state transfer with high fidelity is necessary. Here, we propose a new scheme to implement the quantum state transfer of high fidelity and long distance, by adding on-site potential into the qubit chain and enlarging the proportion of the coupling strength between the two ends and the chain. In the numerical simulation, without decoherence, the transfer fidelities of 9 and 11 qubit chain are 0.999 and 0.997, respectively. Moreover, we give a detailed physical realization scheme of the quantum state transfer in superconducting circuits, and discuss the tolerance of our proposal against decoherence. Therefore, our scheme will shed light on quantum computation with long chain and high-fidelity quantum state transfer.
