Electron pairing in one‐dimensional anharmonic crystal lattices
We show that when anharmonicity is added to the electron-phonon interaction it facilitates electron pairing in a localized state. Such localized state appears as singlet state of two electrons bound with the traveling local lattice soliton distortion, which survives when Coulomb repulsion is included. V C 2011 Wiley Periodicals, Inc. Int J Quantum Chem 112: 551-565, 2012