Small to large polaron transition in a strongly correlated system

A new approach to electron–electron inte

A new approach to electron–electron interactions in strongly correlated systems at arbitrary spin-polarization and temperature

✍ M.W.C. Dharma-wardana 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 151 KB

The uniform electron fluid is the reference model for density functional calculations. Even for this system, many-body perturbation theory, and related methods become questionable when the density parameter r s exceeds unity. Hence, quantum Monte Carlo (QMC) simulation has been almost the only appli