Quantum computation by communication
Quantum computation by communication
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DOI：
10.1088/1367-2630/8/2/030
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发表时间：
2005-09
影响因子：
3.3
通讯作者：
T. Spiller;K. Nemoto;S. Braunstein;W. Munro;W. Munro;P. Loock;G. Milburn
中科院分区：
文献类型：
--
作者：
T. Spiller;K. Nemoto;S. Braunstein;W. Munro;W. Munro;P. Loock;G. Milburn
本文提出了一种新的可扩展量子计算方法--“量子总线计算机”，它通过量子比特与量子通信总线模式的相互作用来实现量子比特测量和量子门。量子比特可以是“静态”物质量子比特或“飞行”光学量子比特，但我们在这里关注的方案特别适合物质量子比特。量子位之间不需要直接相互作用。通用双量子比特量子门可以通过涉及总线模式的测量的方案来实现，或者通过其中总线自动解开并且不需要测量的方案来实现。实际上，该方法将用于计算的量子位自由度与用于通信和交互的量子连续变量集成在一起。
We present here a new approach to scalable quantum computing—a ‘qubus computer’—which realizes qubit measurement and quantum gates through interacting qubits with a quantum communication bus mode. The qubits could be ‘static’ matter qubits or ‘flying’ optical qubits, but the scheme we focus on here is particularly suited to matter qubits. There is no requirement for direct interaction between the qubits. Universal two-qubit quantum gates may be effected by schemes which involve measurement of the bus mode, or by schemes where the bus disentangles automatically and no measurement is needed. In effect, the approach integrates together qubit degrees of freedom for computation with quantum continuous variables for communication and interaction.