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  1. What is the electron density?Sebastian Fortin & Olimpia Lombardi - 2024 - Foundations of Chemistry 26 (3):371-383.
    Although the electron density can be calculated with the formal resources of quantum mechanics, in physics it does not play the leading role that the quantum state does. In contrast, the concept of electron density is central in quantum chemistry. There is no doubt about how the electron density is computed in terms of the wave function of an atom or molecule. However, when the interpretation of the concept is at stake, there is no general agreement. In this article we (...)
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  • Relational quantum mechanics, causal composition, and molecular structure.Stephen Esser - 2024 - Foundations of Chemistry 26 (3):429-446.
    Franklin and Seifert (2021) argue that solving the measurement problem of quantum mechanics (QM) also answers a question central to the philosophy of chemistry: that of how to reconcile QM with the existence of definite molecular structures. This conclusion may appear premature, however, because interactions play a crucial role in shaping molecules, but we generally lack detailed models of how this is accomplished. Given this explanatory gap, simply choosing an interpretation of QM is insufficient, unless the interpretation also has relevant (...)
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  • Electron Charge Density: A Clue from Quantum Chemistry for Quantum Foundations.Charles T. Sebens - 2021 - Foundations of Physics 51 (4):1-39.
    Within quantum chemistry, the electron clouds that surround nuclei in atoms and molecules are sometimes treated as clouds of probability and sometimes as clouds of charge. These two roles, tracing back to Schrödinger and Born, are in tension with one another but are not incompatible. Schrödinger’s idea that the nucleus of an atom is surrounded by a spread-out electron charge density is supported by a variety of evidence from quantum chemistry, including two methods that are used to determine atomic and (...)
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