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arXiv quant-ph/9810082quant-ph
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连续变量上的量子计算

Quantum computation over continuous variables

Seth Lloyd, Samuel L. Braunstein

摘要:

本文给出了在连续变量上构造通用量子计算机的充要条件。作为一个例子,它显示了如何使用简单的线性设备,如分束器和移相器,以及挤压器和非线性设备,如克尔效应光纤和光学腔中的原子,可以构建一个通用的量子计算机的电磁场的振幅。这种装置原则上可以进行“量子浮点”计算。噪声,有限精度和误差校正的问题进行了讨论。

英文摘要:

This paper provides necessary and sufficient conditions for constructing a universal quantum computer over continuous variables. As an example, it is shown how a universal quantum computer for the amplitudes of the electromagnetic field might be constructed using simple linear devices such as beam-splitters and phase shifters, together with squeezers and nonlinear devices such as Kerr-effect fibers and atoms in optical cavities. Such a device could in principle perform `quantum floating point' computations. Problems of noise, finite precision, and error correction are discussed.

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。

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