2 papers
cond-mat.str-el2024
Spectral function of a bipolaron coupled to dispersive optical phonons
K. Kovač, J. Bonča
Using an efficient variational exact diagonalization method, we computed the electron removal spectral function within the framework of the Holstein-Hubbard model containing two el…
cond-mat.str-el2024
Signature of preformed pairs in angle-resolved photoemission spectroscopy
Klemen Kovač, Alberto Nocera, Andrea Damascelli +2
We use density matrix renormalization group (DMRG) and variational exact diagonalization (VED) to calculate the single-electron removal spectral weight for the Hubbard-Holstein mod…