论文标题
通过高能散射探测超old级：响应，密度调制和超流体分数之间的分析关系
Probing the supersolid order via high-energy scattering: analytical relations among response, density modulation, and superfluid fraction
论文作者
论文摘要
高能散射光谱是一种广泛建立的技术，用于探测复杂物理系统的特征。由于最近观察到偶极量子bose气体中长期固体状态的动机，我研究了密度对比度，超流体分数和对经典场中密度调节状态的高能散射探针的响应之间存在的一般关系。我专注于“浅”和“深”超olid的两个极端方案，它们在描述分别为统一的超氟和不连贯的晶体状态的相变时特别感兴趣。在这些制度中，使用相关的Ansätze将其用于偶极超溶的磁场，我指定并说明了与三个可观察结果有关的缩放定律。首先促使这项工作基于实验和平均场数模拟对伴随的研究产生直观的理解。除了这一特定应用之外，这项工作还提供了一个简单而通用的框架，以描述密度调节状态，尤其是迷人的超olid剂。它描述了表征SuperSolid Order的关键特性，并突出了基于高能量散射响应探测此类属性的新可能性。
High-energy scattering spectroscopy is a widely-established technique for probing the characteristic properties of complex physical systems. Motivated by the recent observation of long-sought supersolid states in dipolar quantum Bose gases, I investigate the general relationships existing between the density contrast, the superfluid fraction, and the response to a high-energy scattering probe of density-modulated states within a classical-field approach. I focus on the two extreme regimes of "shallow" and "deep" supersolids, which are of particular interest in describing the phase transitions of the supersolid to a uniform superfluid and an incoherent crystal state, respectively. Using relevant Ansätze for the fields of dipolar supersolid states in these regimes, I specify and illustrate the scaling laws relating the three observables. This work was first prompted to develop an intuitive understanding of a concomitant study based on experiments and mean-field numerical simulations. Beyond this specific application, this works provides a simple and general framework to describe density-modulated states, and in particular the intriguing case of supersolids. It describes key properties characterizing the supersolid order and highlights new possibilities for probing such properties based on high-energy scattering response.
