Abstract
The Resonating Valence Bond theory of the chemical bond was introduced soon after the discovery of quantum mechanics and has contributed to explain the role of electron correlation within a particularly simple and intuitive approach where the chemical bond between two nearby atoms is described by one or more singlet electron pairs. In this chapter Pauling’s resonating valence bond theory of the chemical bond is revisited within a new formulation, introduced by P. W. Anderson after the discovery of High-T\(_\text {c}\) superconductivity. It is shown that this intuitive picture of electron correlation becomes now practical and efficient, since it allows us to faithfully exploit the locality of the electron correlation, and to describe several new phases of matter, such as Mott insulators, High-T\(_\text {c}\) superconductors, and spin liquid phases.
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We acknowledge Mariapia Marchi for sending us unpublished data about the beryllium dimer.
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Sorella, S., Zen, A. (2014). The New Resonating Valence Bond Method for Ab-Initio Electronic Simulations. In: Bach, V., Delle Site, L. (eds) Many-Electron Approaches in Physics, Chemistry and Mathematics. Mathematical Physics Studies. Springer, Cham. https://doi.org/10.1007/978-3-319-06379-9_21
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DOI: https://doi.org/10.1007/978-3-319-06379-9_21
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