论文标题
量子点旋转量子量子量概率传送
Probabilistic teleportation of a quantum dot spin qubit
论文作者
论文摘要
最近已经对半导体量子点中的电子自旋S进行了深入研究，以实现量子计算，并且最近已经实现了高富达单和两个量子操作。量子传送是一种三个Qubit协议，利用了量子纠缠，它是在此处进行更复杂的量子算法的基本原始词，我们演示了一种基于单个电子旋转Qubit的直接测量的量子传送方案，该方案是对单个电子旋转Qubit的直接测量，用于使用Pairi Dublusion doplusion dot -deck of Pairi deck of Create instand intect of Pairi doce create inst in nonange s inst s s of the of Pairi量子。 T he single spin polarization is teleported from the input qubit to the output qubit with a fidelity of 0.9 1 We find this fidelity is primarily limited by singlet triplet mixing which can be improved by optimizing the device parameters Our results may be extended to quantum algorithms with a larger number of se miconductor spin qubit s
Electron spin s in semiconductor quantum dot s have been intensively studied for implementing quantum computation and high fidelity single and two qubit operation s have recently been achieved . Quantum teleportation is a three qubit protocol exploiting quantum entanglement and it serv es as a n essential primitive for more sophisticated quantum algorithm s Here, we demonstrate a scheme for quantum teleportation based on direct Bell measurement for a single electron spin qubit in a triple quantum dot utilizing the Pauli exclusion principle to create and detect maximally entangled state s . T he single spin polarization is teleported from the input qubit to the output qubit with a fidelity of 0.9 1 We find this fidelity is primarily limited by singlet triplet mixing which can be improved by optimizing the device parameters Our results may be extended to quantum algorithms with a larger number of se miconductor spin qubit s
