论文标题
量子热电和热传输过度范围的围绕状态:确切的保形场理论结果
Quantum thermoelectric and heat transport in the overscreened Kondo regime: Exact conformal field theory results
论文作者
论文摘要
我们开发了一种通过量子杂质微调调节到非FERMI液体状态的量子杂质进行量子电荷,热电和热电传输的共形场理论方法。非Fermi-liquid操作模式与过度的旋转围绕效应相关,并由轨道通道的数量控制。研究多通道几何形状研究了塞贝克和佩蒂尔系数的通用低温缩放和关键指数。我们得出并分析热电系数对轨道通道数的普遍依赖性。我们讨论了洛伦兹(Lorenz)比率和功率因数超出费米液体范式的普遍性。提出了根据最近的实验验证我们的发现的不同方法。
We develop a conformal-field theory approach for investigation of the quantum charge-, heat- and thermoelectric- transport through a quantum impurity fine tuned to a non-Fermi liquid regime. The non-Fermi-liquid operational mode is associated with the overscreened spin Kondo effect and controlled by the number of orbital channels. The universal low-temperature scaling and critical exponents for Seebeck and Peltier coefficients are investigated for the multichannel geometry. We derive and analyze the universal dependence of the thermoelectric coefficients on the number of orbital channels. We discuss the universality of Lorenz ratio and power factor beyond the Fermi Liquid paradigm. Different methods of verifying our findings based on the recent experiments are proposed.