Abstract
Water is ubiquitous in nature, however many of its characteristics
are not well undestood. Molecular models have been proposed to represent
the anomalies present in water. They have been successful in
reproducing some of its anomalous behaviour but they have
been unable to
discribe the main physical machanism responsible for the anomalies.
We propose a simple effective model that
is able to capture the thermodynamic, dynamic, and
structural anomalies present
in water. From the analysis of this simple
potential, we derive a prescription for
potentials to exhibit thermodynamic and dynamic anomalies.
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