论文标题
量化抗铁磁波动在掺杂哈伯德模型的超导性中的作用
Quantifying the role of antiferromagnetic fluctuations in the superconductivity of the doped Hubbard model
论文作者
论文摘要
我们使用数值精确的连续时间蒙特卡洛求解器研究了动态群集近似（DCA）在动态群集近似（DCA）内的电子旋转波动偶联对超导状态的贡献。通过分析自我能量的频率依赖性，我们表明，仅大约一半的超导性可以归因于将自旋波动视为标准单环理论中的配对玻色子而产生的“配对胶”。
We study the contribution of the electron-spin fluctuation coupling to the superconducting state of the two dimensional Hubbard model within dynamical cluster approximation (DCA) using a numerical exact continuous time Monte Carlo solver. By analyzing the frequency dependence of the self energy, we show that only about half of the superconductivity can be attributed to a "pairing glue" arising from treating spin fluctuations as a pairing boson in the standard one-loop theory.
