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1 paper

cond-mat.str-el2025

Superconductivity of bipolarons from quadratic electron-phonon interaction

Zhongjin Zhang, Anatoly Kuklov, Nikolay Prokof'ev +1

In systems with linear electron-phonon interaction (EPI), bound states of polarons, or bipolarons, form by gaining energy from the lattice deformation. The quadratic EPI case is fu…