arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/0702133quant-ph
收藏

耦合腔阵列中团簇态的量子计算

Cluster state quantum computation in coupled cavity arrays

Dimitris G. Angelakis, Alastair Kay

摘要:

基于测量的量子计算已经彻底改变了量子信息处理以及可以实现它的物理系统。人们只需要准备一个特定的状态,称为集群状态,然后对其进行单量子比特测量的能力。然而,可扩展的实现尚未实现。在这里,我们提出了一个混合光物质系统的耦合腔与两个能级系统的相互作用。利用稳定的,可单独寻址的,量子比特产生的本地化的长寿命的原子-光子激发,我们演示了如何使用自然的系统动力学“编织”这些量子比特成一个集群状态,并提出实施量子算法,采用只有两行的量子比特。最后,我们简要讨论了利用原子、量子点或库珀对盒进行实验实现的前景。

英文摘要:

Measurement-based quantum computation has revolutionized quantum information processing, and the physical systems with which it can be implemented. One simply needs the ability to prepare a particular state, known as the cluster state, and subsequently to perform single-qubit measurements on it. Nevertheless, a scalable implementation is yet to be realized. Here we propose a hybrid light-matter system comprised of coupled cavities interacting with two level systems. Utilising the stable, individually addressable, qubits resulting from the localised long-lived atom-photon excitations, we demonstrate how to use the natural system dynamics to `weave' these qubits into a cluster state and propose the implementation of quantum algorithms employing just two rows of qubits. Finally, we briefly discuss the prospects for experimental implementation using atoms, quantum dots or Cooper pair boxes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑