In 2021, Western Digital's 20TB drive reached an areal density of 1.16 terabits per square inch. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

At its core, DFT postulates that the ground-state energy of a quantum system is a functional of the electron density. This principle, known as the Hohenberg-Kohn theorem, simplifies the problem of ...

Density functional theory is computational technique used to predict the properties of molecules and bulk materials. It is a method for investigating the electronic structure of many-body systems ...