bra-ket English

Meaning bra-ket meaning

What does bra-ket mean?

bra-ket noun

— (physics) The product of two vectors (and optionally an operator), in Hilbert space, where the left vector is a bra and the right is a ket. Symbolised by ⟨...|...〉 (bra and ket only) or ⟨...|...|...〉 (bra, operator, ket).