论文标题
电子 - 音波相互作用的费米封锁：为什么在最佳掺杂的高温超导体中不会看到强耦合效应
Fermi blockade of the electron-phonon interaction: why strong coupling effects may not be seen in optimally doped high temperature superconductors
论文作者
论文摘要
我们研究强烈的电子相互作用（EPI）的表现如何通过使用近似于近似的自由大胆的图表蒙特卡洛（BDMC）方法来求解自旋极化费米的二维荷斯坦模型来依赖载体浓度。我们表明，强烈的EPI显然存在于很小的费米浓度下，被费米封锁效应和Migdal的定理掩盖，以至于它在大型载体密度下表现为中度一个。抑制强烈的指纹与掺杂的高温超导体中的实验观察一致
We study how manifestations of strong electron-phonon interaction (EPI) depend on the carrier concentration by solving the two-dimensional Holstein model for the spin-polarized fermions using an approximation free bold-line diagrammatic Monte Carlo (BDMC) method. We show that the strong EPI, obviously present at very small Fermion concentration, is masked by the Fermi blockade effects and Migdal's theorem to the extent that it manifests itself as moderate one at large carriers densities. Suppression of strong EPI fingerprints is in agreement with experimental observations in doped high temperature superconductors
