Mean-Field Approximation
- Modern Physics -
Quantum Mechanics Dictionary
Definition
A quantum mechanics concept defining a model element, mathematical object, or experimental method used to predict measurable outcomes. It applies when required assumptions and definitions are specified and yields computable probabilities and expectation values. It does not ensure correctness without validation of approximations, numerical stability, and consistency of units and conventions.
Mean-Field Approximation
Natural & Formal Sciences Dictionary
Definition
A reduction technique that replaces many-body interactions by an average or effective field so that each component evolves under the mean influence of the ensemble rather than explicit pairwise interactions.