bra-ket
bra-ket · bra-kets
The scalar product of two vectors, in Hilbert space, where the left vector is a bra…The scalar product of two vectors (and optionally an operator), in Hilbert space, where the left (row) vector is a bra and the right (column) vector is a ket. Symbolised by ⟨...|...⟩ (bra and ket only) or ⟨...|...|...⟩ (bra, operator, ket).
Meaning
1 sensesThe scalar product of two vectors (and optionally an operator), in Hilbert space, where the left (row) vector is a bra and the right (column) vector is a ket. Symbolised by ⟨...|...⟩ (bra and ket only) or ⟨...|...|...⟩ (bra, operator, ket).
Origin
Concatenation of the terms bra and ket, which were introduced in 1939 and in turn derive fConcatenation of the terms bra and ket, which were introduced in 1939 and in turn derive from the splitting of the English word bracket.
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