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Experimental realization of phase-controlled dynamics with hybrid digital-analog approach

机译:杂交数字模拟方法的相控动力学实验实现

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Quantum simulation can be implemented in pure digital or analog ways, each with their pros and cons. By taking advantage of the universality of a digital route and the efficiency of analog simulation, hybrid digital-analog approaches can enrich the possibilities for quantum simulation. We use a hybrid approach to experimentally perform a quantum simulation of phase-controlled dynamics resulting from a closed-contour interaction (CCI) within certain multi-level systems in superconducting quantum circuits. Due to symmetry constraints, such systems cannot host an inherent CCI. Nevertheless, by assembling analog modules corresponding to their natural evolutions and specially designed digital modules constructed from standard quantum logic gates, we can bypass such constraints and realize an effective CCI in these systems. Based on this realization, we demonstrate a variety of related and interesting phenomena, including phase-controlled chiral dynamics, separation of chiral enantiomers, and a mechanism to generate entangled states based on CCI.
机译:量子仿真可以以纯的数字或模拟方式实现,每个方式都有其优点和缺点。通过利用数字路线的普遍性和模拟模拟的效率,混合的数字模拟方法可以丰富量子仿真的可能性。我们使用混合方法来实验地执行由超导量子电路中的某些多级系统内的闭合轮廓交互(CCI)产生的相控动力学的量子模拟。由于对称性约束,这种系统无法托管固有的CCI。尽管如此,通过组装与其自然演进的模拟模块以及由标准量子逻辑门构成的特殊设计的数字模块,我们可以绕过这些约束并在这些系统中实现有效的CCI。基于这一实现,我们展示了各种相关和有趣的现象,包括相控手性动力学,手性对映体的分离,以及基于CCI产生缠结状态的机制。

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