AI 中文总结
该研究证明超冷屏蔽分子在光学晶格中可实现受控扩展Hubbard模型,通过晶格深度和微波偶极相互作用独立调控格点内与格点间相互作用,并提供能区分掺杂Mott绝缘体中空穴间相互作用的显微镜,对理解超导和奇异金属性有重要意义。
AI 中文摘要
我们证明,在适当的参数范围内,光学晶格中的超冷碰撞屏蔽分子能够实现受控的扩展Hubbard模型,尽管它们具有大半径的硬核排斥作用。我们计算了Hubbard参数,并表明晶格深度和微波诱导的偶极相互作用为格点内和格点间相互作用的灵活、独立控制提供了手段。这使得屏蔽分子成为扩展Hubbard模型的强大平台,并能够实现一种相互作用显微镜,可区分掺杂Mott绝缘体中空穴间的相互作用——这对超导性和奇异金属性至关重要——而仅凭量子气体显微镜无法区分这些相互作用。
英文摘要
We show that, in appropriate regimes, ultracold collisionally shielded molecules in an optical lattice realize a controlled extended Hubbard model, despite their large-radius hard-core repulsion. We compute the Hubbard parameters and show lattice depth and microwave-induced dipolar interactions provide flexible, independent control of on- and off-site interactions. This makes shielded molecules a powerful platform for extended Hubbard models and enables an interaction microscope that can distinguish inter-hole interactions in doped Mott insulators - crucial to superconductivity and strange metallicity - that are indistinguishable with quantum gas microscopy alone.