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arXiv 1503.08121quant-ph
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连续变量量子场论的量子模拟

Quantum simulation of quantum field theory using continuous variables

Kevin Marshall, Raphael Pooser, George Siopsis, Christian Weedbrook

摘要:

在过去的几年里,在使用连续变量的量子计算领域取得了很大的进展。这包括产生极大的纠缠簇态(实际上有10,000个模式)以及容错架构。这导致连续变量量子计算确实可以被认为是通用量子计算的可行替代方案。考虑到这一点,我们提出了一种用于连续变量量子计算机的新算法,该算法比最著名的经典方法具有指数级加速。具体而言,这涉及到有效地计算标量玻色子量子场论中的散射振幅,这是一个被认为很难使用经典计算机的问题。在此基础上,我们给出了一个实验性的实现基于集群状态,是可行的,与今天的技术。

英文摘要:

Much progress has been made in the field of quantum computing using continuous variables over the last couple of years. This includes the generation of extremely large entangled cluster states (10,000 modes, in fact) as well as a fault tolerant architecture. This has led to the point that continuous-variable quantum computing can indeed be thought of as a viable alternative for universal quantum computing. With that in mind, we present a new algorithm for continuous-variable quantum computers which gives an exponential speedup over the best known classical methods. Specifically, this relates to efficiently calculating the scattering amplitudes in scalar bosonic quantum field theory, a problem that is believed to be hard using a classical computer. Building on this, we give an experimental implementation based on cluster states that is feasible with today's technology.

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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