AI 中文总结
该研究利用囚禁离子量子模拟器模拟单个自旋 - 1/2 驱动 - 耗散系统，通过实验比较非马尔可夫与马尔可夫浴场稳态，发现非马尔可夫通道能显著改变稳态，展示了结构化环境中量子系统的丰富性，为量子库工程开辟新可能。
AI 中文摘要
开放量子系统的量子模拟为更好地理解各种非平衡物理提供了一条途径，否则这些物理将难以研究。大多数研究的开放量子系统被建模为服从马尔可夫近似，即系统向其耗散信息的浴场被假定不受系统 - 浴场相互作用的影响。然而，实际浴场通常在某种程度上受这种相互作用影响，一些存在于结构化非马尔可夫环境中的系统可能会因此展现出新行为。在此，我们利用囚禁离子量子模拟器来模拟具有非马尔可夫耗散通道的单个自旋 - 1/2 驱动 - 耗散系统，并通过实验将稳态与来自类似马尔可夫浴场的稳态进行比较。我们观察到，即使对于单个量子比特，非马尔可夫耗散通道也能显著改变稳态，使其进入马尔可夫耗散无法达到的状态。这证明了结构化环境中量子系统具有额外的丰富性。这里使用的技术与该模型的多体扩展兼容，而这些扩展通常无法在经典计算机上高效模拟。我们的工作还为超越马尔可夫区域的量子库工程开辟了新的可能性。
英文摘要
Quantum simulation of open quantum systems offers a pathway towards better understanding various non-equilibrium physics that would otherwise be challenging to study. While most open quantum systems studied are modeled as being memory-less (obeying the Markov approximation), real baths generally are influenced by the system-bath interaction, and some systems existing in structured non-Markovian environments can display novel behavior as a result. Here we utilize a trapped ion quantum simulator to simulate a single spin-$1/2$ driven-dissipative system with a non-Markovian dissipation channel, and experimentally compare steady-states to those from an analogous Markovian bath. We observe that a non-Markovian dissipative channel can shift the steady-state even for a single qubit, to a regime inaccessible for Markovian dissipation. The techniques used here are compatible with many-body extensions of the model, which can not be simulated efficiently on a classical computer in general. Our work also opens up new possibilities in quantum reservoir engineering beyond the Markovian regime.
