论文标题
超电原子量子模拟器中的可调限制 - 限制过渡
Tunable Confinement-Deconfinement Transition in an Ultracold Atom Quantum Simulator
论文作者
论文摘要
最近，通过在光学晶格中使用玻色子来实现一维晶格施温格模型。该模型既包含限制阶段，又包含反封码阶段，其相图由物质场的质量和拓扑角度控制。由于改变物质场的质量在实验上是直接的，因此我们提出了如何调整拓扑角度，从而访问整个相图。我们建议，可以通过测量是否将物理电荷定位在固定量表电荷周围进行筛查来获得直接的限制和解糊精证据。我们还讨论了在Rydberg原子阵列中实现的PXP模型，当所有局部仪表电荷固定为零时，该模型等同于Lattice Schwinger模型。尽管仪表电荷是固定的，但我们可以通过研究一对物理电荷和反电荷的相对运动来探测PXP模型中的限制和解限。我们的方案可以直接在这两个相关的超速原子量子模拟器的实验平台中实施。
The one-dimensional lattice Schwinger model has recently been realized by using bosons in optical lattices. This model contains both confinement and deconfinement phases, whose phase diagram is controlled by the mass of the matter field and the topological angle. Since varying the mass of matter field is straightforward experimentally, we propose how to tune the topological angle, allowing accessing the entire phase diagram. We propose that direct experimental evidence of confinement and deconfinement can be obtained by measuring whether a physical charge is localized around a fixed gauge charge to screen it. We also discuss the PXP model realized in the Rydberg atoms array, which is equivalent to the lattice Schwinger model when all local gauge charges are fixed as zero. Although the gauge charges are fixed, we can alternatively probe the confinement and the deconfinement in the PXP model by studying the relative motion of a pair of a physical charge and an anti-charge. Our scheme can be directly implemented in these two relevant experimental platforms of ultracold atom quantum simulators.
