Motivated by recent theoretical and experimental advances in quantum simulations using alkaline earth (AE) atoms, we put forward a proposal to detect the Kondo physics in a cold atomic system. It has been demonstrated that the intrinsic spin-exchange interaction in AE atoms can be significantly enhanced near a confinement-induced resonance (CIR), which facilitates the simulation of Kondo physics. Since the Kondo effect appears only for antiferromagnetic coupling, we find that the conductivity of such system exhibits an asymmetry across a resonance of spin-exchange interaction. The asymmetric conductivity can serve as the smoking gun evidence for Kondo physics in the cold atom context. When an extra magnetic field ramps up, the spin-exchange process near Fermi surface is suppressed by Zee-man energy and the conductivity becomes more and more symmetric. Our results can be verified in the current experimental setup.

受最近使用碱土 (AE) 原子进行量子模拟的理论和实验进展的启发，我们提出了在冷原子系统中检测 Kondo 物理学的建议。已经证明，AE 原子中的内在自旋交换相互作用可以在限制诱导共振 (CIR) 附近显着增强，这有助于近藤物理的模拟。由于近藤效应仅出现在反铁磁耦合中，我们发现这种系统的电导率在自旋交换相互作用的共振中表现出不对称性。在冷原子背景下，不对称电导率可以作为近藤物理学的吸烟枪证据。当额外的磁场上升时，费米面附近的自旋交换过程受到塞曼能的抑制，电导率变得越来越对称。我们的结果可以在当前的实验设置中得到验证。