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Št. zadetkov: 2
Fingerprints of preformed pairs in two-electron angle-resolved photoemission spectroscopy
Janez Bonča, Andrea Damascelli, Mona Berciu
Izvirni znanstveni članek
Oznake: kontno razločna fotoemisijska spektroskopija;bozoni;polaroni;Holsteinov model;Hubbardov model;angle-resolved photoemission spectroscopy;bosons;polarons;Holstein model;Hubbard model;
We use variational exact diagonalization (VED) to calculate the two-electron removal spectral weight for the Hubbard-Holstein model, starting from the ground state with two electrons on a one-dimensional chain. We argue that this spectral weight provides a valuable proxy for the intensity of 2eARPES ...
Leto: 2026 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Signature of preformed pairs in angle-resolved photoemission spectroscopy
Klemen Kovač, Alberto Nocera, Andrea Damascelli, Janez Bonča, Mona Berciu
Izvirni znanstveni članek
Oznake: fizika kondenzirane snovi;močno korelirani elektroni;condensed matter physics;strongly correlated electrons;
We use density matrix renormalization group (DMRG) and variational exact diagonalization (VED) to calculate the single-electron removal spectral weight for the Hubbard-Holstein model at low electron densities. Tuning the strength of the electron-phonon coupling and of the Hubbard repulsion allows us ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 2
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