Approximate scaling relation for the anharmonic electron-phonon problem

Abstract

An approximate scaling relation is found for the transition temperature to a charge-density-wave instability in the anharmonic electron-phonon problem, which maps a wide range of interaction strengths, anharmonicities, and phonon frequencies onto a common functional form. The relation employs the wave-function renormalization parameter and is valid even for systems that are not Fermi liquids.

5 pages, 6 figures, ReVTeX

Cited by in corpus (7)

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• Quantum phonons and the charge density wave transition temperature: a dynamical mean field study
• Gap ratio in anharmonic charge-density-wave systems
• Exciton transport enhancement across quantum Su-Schrieffer-Heeger lattices with quartic nonlinearity
• Path Integral Computation of Phonon Anharmonicity
• Charge-density-wave instability in the Holstein model with quartic anharmonic phonons