The square lattice structure of CuO2 layers and the strongly correlated properties of electrons in cuprates were studied. A nontrivial gauge symmetry was used to analyze the spin and charge fluctuations characterizing the low energy magnetic excitations. Bogoliubov transformations were also used to determine the quasiparticle operators with respect to physical vacuum states. The analysis suggested that three SO(5) coherent pairing states describing different physical properties of strongly correlated electrons in cuprates was generated by different pair operators.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering