2 papers
cond-mat.supr-con2024
Collective mode across the BCS-BEC crossover in Holstein model
Tae-Ho Park, Han-Yong Choi
We investigate the emergence of the collective mode in the phonon spectra of the superconducting state within the Holstein model by varying the electron-phonon coupling. Using dyna…
cond-mat.str-el2024
Non-Fermi liquid over extended range at zero temperature without quantum criticality
Tae-Ho Park, Han-Yong Choi
A strange metal state appears in many strongly correlated materials from the cuprates, pnictides, and twisted bilayer graphenes to even bosonic systems. Enormous efforts are being…