论文标题
将微波炉冷却到一般多模高斯状态
Cooling microwave fields into general multimode Gaussian states
论文作者
论文摘要
我们表明，可以使用一组有损的多重调制量子尺的集合来耗散一组玻色子模式的任意高斯状态。我们的想法尤其适合于超导电路架构，在这些架构上，所有所需的成分都是实验可用的。这种多模高斯状态的生成是许多应用所必需的，最著名的是基于测量的量子计算。我们基于以前的一些建议，在那里我们展示了如何通过冷却和激光来生成单模和两种模式的态度。将这些想法扩展到许多骨气模式时，必须特别注意，我们在这里讨论如何克服自然出现的所有局限性和障碍。我们以一个由GHz状态组成的充分示例来说明我们的想法，但还测试了其他几个示例，例如群集状态。所有这些示例使我们能够证明可以使用一组N损失量子器将N MODES的Hotony量子链冷却到任何所需的高斯状态。
We show that a collection of lossy multi-chromatically modulated qubits can be used to dissipatively engineer arbitrary Gaussian states of a set of bosonic modes. Our ideas are especially suited to superconducting-circuit architectures, where all the required ingredients are experimentally available. The generation of such multimode Gaussian states is necessary for many applications, most notably measurement-based quantum computation. We build upon some of our previous proposals, where we showed how to generate single-mode and two-mode squeezed states through cooling and lasing. Special care must be taken when extending these ideas to many bosonic modes, and we discuss here how to overcome all the limitations and hurdles that naturally appear. We illustrate our ideas with a fully worked out example consisting of GHZ states, but have also tested several other examples such as cluster states. All these examples allow us to show that it is possible to use a set of N lossy qubits to cool down a bosonic chain of N modes to any desired Gaussian state.
