What physics can we learn from Sheldon and Wolowitz's debate

Sheldon: How would you determine the ground state of a quantum system with no exact solution?

Howard: I would guess a wave-function and then vary its parameters until I found the lowest energy solution.

A wave function or wavefunction (also named a state function) in quantum mechanics describes the quantum state of a system of one or more particles, and contains all the information about the system considered in isolation.


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