Continuum
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Continuum models were originally designed to handle liquid solution environments where the statistical
averaging assumption in the relevant regions was viable. Typically these environments would have neutral
net charge and a temperature where specific interactions like hydrogen bonding did not compromise the
homogeneity of the system. These models have evolved to handle a wider variety of systems, such as ionic
liquids and complex multiscale dielectric environments, such as metal nanoparticles and plasmonic devices on
nearby QM systems.