# Quantum physics functions (plasmapy.formulary.quantum)

Functions for quantum parameters, including electron degenerate gases and warm dense matter.

## Functions

 chemical_potential(n_e, T) Calculate the ideal chemical potential. deBroglie_wavelength(V, particle) Return the de Broglie wavelength. Calculate the kinetic energy in a degenerate electron gas. Calculate the thermal de Broglie wavelength for electrons. Calculate the exponential scale length for charge screening for cold and dense plasmas. Calculate the Wigner-Seitz radius, which approximates the inter-particle spacing.

## Aliases

PlasmaPy provides short-named (alias) versions of the most common plasma functionality. These aliases are only given to functionality where there is a common lexicon in the community, for example plasma_frequency has the alias wp_. All aliases in PlasmaPy are denoted with a trailing underscore _.

 Ef_(n_e) Alias to Fermi_energy. lambdaDB_(V, particle) Alias to deBroglie_wavelength.