Volume entropy

Volume entropy, often referred to simply as "entropy" in the context of dynamical systems and thermodynamics, measures the degree of disorder or randomness in a system. In a more specific sense, it can relate to how the volume of certain sets in phase space evolves over time under the dynamics of a system. In dynamical systems, volume entropy is typically associated with the measure-theoretic notion of entropy, which quantifies the unpredictability and complexity of the system's behavior.