Pole structure of the electronic self-energy with coexistence of charge order and superconductivity

Article

关键词: DENSITY-WAVE ORDER;    HIGH-TEMPERATURE SUPERCONDUCTOR;    NORMAL-STATE;    GAUGE-THEORY;    DYNAMICS;    SCALES;    NMR;    TC;   

DOI  :  10.1103/PhysRevB.103.224507

来源: SCIE

【 摘 要 】

We compare the pole structure of the electronic Green's function obtained by cluster dynamical mean-field theory to the results from the fractionalized pair density wave idea. In the superconducting phase, we can consider the system in a state with coexistence of superconducting and charge order. Writing the Green's function in a way analogous to the previously proposed hidden-fermions model [Sakai et al., Phys. Rev. Lett. 116, 057003 (2016)] leads to a similar pole structure for the self-energy. The fractionalization of the pair density wave order also describes the pseudogap phase as a superposition of superconducting and charge order fluctuations. Considering a phenomenological lifetime for the particle-particle and particle-hole pairs leads to an electronic spectral function that matches the numerical results.

【 授权许可】

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