We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
On-site interaction induced peak-dip-hump feature in the APRES spectra of cuprate superconductors.
- Authors
Yang, Xing
- Abstract
For decades, the difficulty of tackling a strong coupling model with a perturbative approach remained despite numerous inquiries. In this work, a typical mean field theory procedure transforms a strong coupling Hamiltonian into a weak one, which can be solved with a perturbative approach. The Hamiltonian of two-dimensional free electron gas with Hubbard on-site interaction is calculated as a test of the new procedure. Consequently, the spectral characteristics of the cuprates "peak-dip-hump" are reproduced. The result is compared with the past theoretical investigations, e.g., quantum Monte Carlo method, density matrix renormalization group, tensor network methods, etc. which agree well with the spectral curve.
- Subjects
QUANTUM Monte Carlo method; HIGH temperature superconductors; CUPRATES; MEAN field theory; TWO-dimensional electron gas; RENORMALIZATION group
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2024, Vol 38, Issue 5, p1
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S021797922450067X