Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2007-07-06
Advances in Physics, Volume 56, 927 (2007).
Physics
Condensed Matter
Strongly Correlated Electrons
Review, Adv. Phys. (in press)
Scientific paper
We review the Resonating Valence Bond (RVB) theory of high temperatur e superconductivity using Gutzwiller projected wave functions that incorporate strong correlations. After a general overview of the phenomenon of high temperature superconductivity, we discuss Anderson's RVB picture and its implementation by renormalised mean field theory (RMFT) and variational Monte Carlo (VMC) techniques. We review RMFT and VMC results with an emphasis on recent development s in extending VMC and RMFT techniques to excited states. We compare results obtained from these methods with angle resolved photoemission spectroscopy (ARPES) and scanning tunnelling microscopy (STM). We conclude by summarising recent successes of this approach and discuss open problems that need to be solved for a consistent and complete description of high temperature superconductivity using Gutzwiller projected wave functions.
Edegger Bernhard
Gros Claudius
Muthukumar V. N.
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