Noun
kets
plural of ket
kets (uncountable)
(Yorkshire) Manure or farm muck spread on farm land.
From the commutativity of kets with (complex) scalars now follows that : must be the identity operator, which sends each vector to itself. Source: Internet
However, since : the smallest eigen-number is 0, and : In this case, subsequent applications of the lowering operator will just produce zero kets, instead of additional energy eigenstates. Source: Internet
Linear operators seeAlso Linear operators acting on kets A linear operator is a map that inputs a ket and outputs a ket. Source: Internet
When employing the Poincaré sphere (also known as the Bloch sphere ), the basis kets ( and ) must be assigned to opposing ( antipodal ) pairs of the kets listed above. Source: Internet