论文标题
观察保利水晶
Observation of Pauli Crystals
论文作者
论文摘要
保利排除原则是基于物质结构的基本法律。由于其抗对称波函数，没有两个费米子可以占据相同的量子状态。在这里，我们在连续的系统中直接观察保利原理的直接观察在二维谐波振荡器的基础状态下。为此，我们通过在动量空间中应用单个原子解析成像方案来采样完整的多体波函数。我们发现所谓的保利晶体是高阶相关的表现。与真实的晶体相反，这些独特的高阶密度相关性即使没有任何相互作用也出现。我们的工作为许多费米斯强烈相互作用的系统中的相关性研究奠定了基础。
The Pauli exclusion principle is a fundamental law underpinning the structure of matter. Due to their anti-symmetric wave function, no two fermions can occupy the same quantum state. Here, we report on the direct observation of the Pauli principle in a continuous system of up to six particles in the ground state of a two-dimensional harmonic oscillator. To this end, we sample the full many-body wavefunction by applying a single atom resolved imaging scheme in momentum space. We find so-called Pauli crystals as a manifestation of higher order correlations. In contrast to true crystalline phases, these unique high-order density correlations emerge even without any interactions present. Our work lays the foundation for future studies of correlations in strongly interacting systems of many fermions.
