3 papers
cond-mat.str-el2025
Computation Kernel for Feynman Diagrams
Daria Gazizova, Rayan Farid, B. D. E. McNiven +3
We present a general representation for solving problems in many-body perturbation theory. By projecting the single-particle Green's function to an auxiliary space we show how one…
cond-mat.str-el2025
Lifshitz transition and triplet -wave pairing from the induced ferromagnetic plaquette via spin differentiated nonlocal interaction
Rayan Farid, Daria Gazizova, B. D. E. McNiven +1
We study the two-dimensional extended Hubbard model on a square lattice and incorporate spin-differentiated nearest neighbor (NN) interactions where the equal-spin () and u…
cond-mat.supr-con2024
Pairing susceptibility in the weakly interacting multilayer Hubbard model evaluated by direct perturbative expansion
Rayan Farid, J. P. F. LeBlanc
We present a systematic study of the interaction, doping, and layer dependence of the -wave pairing susceptibility of the Hubbard model for a stacked 2D square lattice…