 The problems regarding the relations between chemistry and physics were addressed by Lombardi’s group from various perspectives. In particular, they brought to light several interpretive issues of quantum mechanics that are not accommodated when the theory is used in chemistry (Lombardi and Castagnino 2010; Martínez González, Fortin, and Lombardi 2019) and argued that quantum decoherence does not solve the problem of isomerism (Fortin, Lombardi, and Martínez González 2016). They also began to examine the issue of the relationship between chemistry and quantum mechanics from a theoretical perspective, such as the Quantum Theory of Atoms in Molecules (Jaimes Arriaga, Fortin, and Lombardi 2019) and Bohmian mechanics (Fortin, Lombardi, and Martínez González 2017); this last paper was critically assessed by Giovanni Villani, Elena Ghibaudi, and Luigi Cerruti (2018).