Many-body wave function

A many-body wave function describes the quantum state of a system with multiple particles, such as electrons in an atom or molecules. It encodes all possible ways these particles can behave and interact simultaneously, capturing the complex correlations between them. Unlike single-particle wave functions, which focus on one particle, the many-body wave function provides a comprehensive mathematical picture of the entire system's quantum properties. It is essential for understanding collective phenomena and predicting how particles influence each other within a quantum system.