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Condensed Matter > Strongly Correlated Electrons
Title: Pole structure of the electronic self-energy with coexistence of Charge order and Superconductivity
(Submitted on 21 Dec 2020)
Abstract: 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 from S. Sakai et al (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.
Submission history
From: Maxence Grandadam [view email][v1] Mon, 21 Dec 2020 10:12:29 GMT (509kb,D)
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