Source: wikibot/bra-ket-notation
= Bra–ket notation
{wiki=Bra–ket_notation}
Bra-ket notation is a standard notation used in quantum mechanics to represent quantum states and their inner products. It was introduced by physicist Paul Dirac and is a part of his formulation of quantum mechanics. In bra-ket notation, a "ket" is denoted by the symbol \\(|\\psi\\rangle\\), where \\(\\psi\\) represents a particular quantum state.