论文标题
因此（5）库仑盒设备中的非富特液体
SO(5) non-Fermi liquid in a Coulomb box device
论文作者
论文摘要
在量子点设备中可以实现非Furmi液体（NFL）物理学，在量子点设备中，竞争相互作用会挫败点旋转或电荷自由度的精确筛选。我们表明，涉及量子盒和金属铅的点的标准纳米式架构可以托管带有异国情调的SO（5）对称左旋效应，并带有纠缠的点和盒子电荷和旋转。这种NFL状态对于打破通道和旋转对称性具有出乎意料的鲁棒性，但被颗粒孔不对称性破坏了。通过调谐栅极电压，SO（5）状态连续演变为旋转，然后“风味”两通道Kondo状态。突出显示了预期的实验电导特征。
Non-Fermi liquid (NFL) physics can be realized in quantum dot devices where competing interactions frustrate the exact screening of dot spin or charge degrees of freedom. We show that a standard nanodevice architecture, involving a dot coupled to both a quantum box and metallic leads, can host an exotic SO(5) symmetry Kondo effect, with entangled dot and box charge and spin. This NFL state is surprisingly robust to breaking channel and spin symmetry, but destabilized by particle-hole asymmetry. By tuning gate voltages, the SO(5) state evolves continuously to a spin and then "flavor" two-channel Kondo state. The expected experimental conductance signatures are highlighted.
