Simulating quantum fields with cavity QED.
Simulating quantum fields with cavity QED.
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DOI：
10.1103/physrevlett.110.090501
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发表时间：
2012-06
影响因子：
8.6
通讯作者：
S. Barrett;K. Hammerer;Sarah K. Harrison;T. Northup;T. Osborne
中科院分区：
文献类型：
--
作者：
S. Barrett;K. Hammerer;Sarah K. Harrison;T. Northup;T. Osborne
由于完全运行的量子计算机的实现还很遥远，量子模拟，即一个量子系统被设计成模拟另一个量子系统，成为一个具有重要现实意义的关键目标。在这里，我们报道了一种变分方法，利用腔QED结构的自然物理来模拟强相互作用的量子场。我们的方案广泛地适用于任何涉及与光的可调谐和强非线性相互作用的体系结构；作为例子，我们证明了现有的腔设备可以模拟强相互作用玻色子的模型。该方案可以扩展到多组分场纠缠系统的模拟，超出了现有经典模拟方法的范围。
As the realization of a fully operational quantum computer remains distant, quantum simulation, whereby one quantum system is engineered to simulate another, becomes a key goal of great practical importance. Here we report on a variational method exploiting the natural physics of cavity QED architectures to simulate strongly interacting quantum fields. Our scheme is broadly applicable to any architecture involving tunable and strongly nonlinear interactions with light; as an example, we demonstrate that existing cavity devices could simulate models of strongly interacting bosons. The scheme can be extended to simulate systems of entangled multicomponent fields, beyond the reach of existing classical simulation methods.