We demonstrate nonequilibrium steady-state photon transport through a chain of five coupled artificial atoms simulating the driven-dissipative Bose-Hubbard model. Using transmission spectroscopy, we show that the system retains many-particle coherence despite being coupled strongly to two open spaces. We find that cross-Kerr interaction between system states allows high-contrast spectroscopic visualization of the emergent energy bands. For vanishing disorder, we observe the transition of the system from the linear to nonlinear regime of photon blockade in excellent agreement with the input-output theory. Finally, we show how controllable disorder introduced to the system suppresses nonlocal photon transmission. We argue that proposed architecture may be applied to analog simulation of many-body Floquet dynamics with even larger arrays of artificial atoms paving an alternative way towards quantum supremacy.

中文翻译：

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玻色-哈伯德超导人工原子链中的光子输运

我们演示了通过模拟耦合驱动耗散Bose-Hubbard模型的五个耦合人工原子链进行的非平衡稳态光子传输。使用透射光谱，我们显示了该系统尽管牢固地耦合到两个开放空间，但仍保留了许多粒子的相干性。我们发现系统状态之间的跨Kerr交互作用可以对新兴的能带进行高对比度的光谱可视化。对于消失的无序​​现象，我们观察到系统从光子阻挡的线性状态到非线性状态的转变与输入输出理论极为吻合。最后，我们展示了如何将可控制的无序引入系统中来抑制非局部光子传输。