论文标题
连接syk点
Connecting the SYK dots
论文作者
论文摘要
我们研究了在sachdev-ye-kitaev（Syk）量子点的颗粒阵列中的推定（奇怪）金属到绝缘子的转变，每个量子都被大量的携带电荷携带费用n >> 1所占据。扩展了先前的研究，我们通过与物理相关的库仑相互作用进行补充SYK耦合，并专注于电荷波动的影响，评估状态的电导率和密度。发现后者证明了有效的现场隧道与重量化的库仑能相媲美时表明行为的明显变化，从而表示所讨论的过渡。
We study a putative (strange) metal-to-insulator transition in a granular array of the Sachdev-Ye-Kitaev (SYK) quantum dots, each occupied by a large number N>>1 of charge-carrying fermions. Extending the previous studies we complement the SYK couplings by the physically relevant Coulomb interactions and focus on the effects of charge fluctuations, evaluating the conductivity and density of states. The latter were found to demonstrate marked changes of behavior when the effective inter-site tunneling becomes comparable to the renormalized Coulomb energy, thus signifying the transition in question.
