Cuprate superconductors have a layered structure, and then the physical properties are significantly enriched when two or more two copper-oxide layers are contained in a unit cell. Here the characteristic features of the renormalization of the electrons in the bilayer cuprate superconductors are investigated within the framework of the kinetic-energy driven superconducting mechanism. It is shown that the electron quasiparticle excitation spectrum is split into its bonding and antibonding components due to the presence of the bilayer coupling, with each component that is independent. However, in the underdoped and optimally doped regimes, although the bonding and antibonding electron Fermi surface contours deriving from the bonding and antibonding layers are truncated to form the disconnected bonding and antibonding Fermi arcs, almost all spectral weights in the bonding and antibonding Fermi arcs are reduced to the tips of the bonding and antibonding Fermi arcs, which in this case coincide with the bonding and antibonding hot spots. These hot spots connected by the scattering wave vectors q_i construct an octet scattering model, and then the enhancement of the quasiparticle scattering processes with the scattering wave vectors q_i is confirmed via the result of the autocorrelation of the electron quasiparticle excitation spectral intensities. Moreover, the peak-dip-hump structure developed in each component of the electron quasiparticle excitation spectrum along the corresponding electron Fermi surface is directly related with the peak structure in the quasiparticle scattering rate except for at around the hot spots, where the peak-dip-hump structure is caused mainly by the pure bilayer coupling. Although the kink in the electron quasiparticle dispersion is present all around the electron Fermi surface, when the momentum moves away from the node to the antinode, the kink energy smoothly decreases, while the dispersion kink becomes more pronounced, and in particular, near the cut close to the antinode, develops into a break separating of the fasting dispersing high-energy part of the electron quasiparticle excitation spectrum from the slower dispersing low-energy part. By comparing with the corresponding results in the single-layer case, the theory also indicates that the characteristic features of the renormalization of the electrons are particularly obvious due to the presence of the bilayer coupling.

铜酸盐超导体具有层状结构，并且当在单元电池中包含两个或两个以上氧化铜层时，物理性能显着丰富。在此，在动能驱动的超导机制的框架内研究了双层铜酸盐超导体中电子的重新归一化的特征。结果表明，由于存在双层耦合，准电子粒子的激发光谱分为键合和反键两个分量，每个分量都是独立的。但是，在欠掺杂和最佳掺杂状态下，尽管从键合和反键合层衍生的键合和反键合电子费米表面轮廓被截断以形成断开的键合和反键合费米弧，粘结和反粘结费米弧中的几乎所有光谱权重都减小到粘结和反粘结费米弧的尖端，在这种情况下，这与粘结和反粘结热点一致。这些热点由散射波矢量连接q_我构建八位组散射模型，然后用该散射波矢量的准粒子散射过程的增强q_我通过电子准粒子激发光谱强度的自相关的结果可以确定。此外，沿着相应的电子费米表面在电子准粒子激发光谱的每个分量中形成的峰-峰-峰结构与准粒子散射率中的峰结构直接相关，除了在热点附近。峰结构主要是由纯双层耦合引起的。尽管准电子分散体中的扭结存在于整个费米电子表面，但当动量从结点移向波腹时，扭结能量平稳地降低，而分散结点变得更加明显，尤其是在切点附近靠近波腹，发展为电子准粒子激发光谱的空速分散高能部分与较慢分散低能部分的断裂分离。通过与单层情况下的相应结果进行比较，该理论还表明，由于存在双层耦合，电子重新归一化的特征特别明显。