Theory on the pseudogap, charge-density-wave, and superconductivity in high-temperature cuprate superconductors

Mu-Kun Lee^1*, Tsung-Sheng Huang¹, Chyh-Hong Chern¹

¹Department of Physics, National Taiwan University, Taipei 10617, Taiwan

* Presenter:Mu-Kun Lee, email:irlight203@hotmail.com

High-temperature superconductivity in cuprates exhibits the pesudogap, charge-density-wave modulations, d-wave superconductivity, Fermi arc formation, and the ferromagnetic time-reversal-symmetry-breaking fluctuation in the polar Kerr rotation experiments. We demonstrate that they share the same root of origin using a single strongly correlated field-theoretical model. Our model describes a scenario in which electrons interact with the antiferromagnetic fluctuation in the doped cuprates through their spin Berry curvature. In the low-energy uniform regime, it reduces to the positive-U Hubbard model. In the consideration of inhomogeneous regime, our theory reduces to the extended negative-U Hubbard model.

Keywords: Superconductivity, Pseudogap, Charge density wave, Fermi arcs