1 citations · 1 across the 2 of their papers we have counts for
2 papers
cond-mat.supr-con2025
Effects of next-nearest neighbor hopping on the pairing and critical temperatures of the attractive Hubbard model on a square lattice
Rodrigo A. Fontenele, Natanael C. Costa, Thereza Paiva +1
The attractive Hubbard model plays a paradigmatic role in the study of superconductivity (superfluidity) and has become directly realizable in ultracold atom experiments on optical…
quant-ph2023★ 1 cited
Four interacting spins: addition of angular momenta, spin-spin correlation functions, and entanglement
Raimundo R. dos Santos, Lucas Alves Oliveira, Natanael C. Costa
We study four spins on a ring coupled through competing Heisenberg interactions between nearest neighbors, , and next-nearest neighbors, . The spectrum is obtaine…