Salt metathesis reaction

Template:Unreferenced stub A quantum register (also known as a qregister) is the quantum mechanical analogue of a classical processor register.

A mathematical description of a quantum register is achieved by using a tensor product of qubit bra or ket vectors. For example, an n qubit quantum register is described by an element $|\mathrm{\Psi }⟩=|\psi {⟩}_1\otimes |\psi {⟩}_2\otimes \dots \otimes |\psi {⟩}_n$ in the tensor product Hilbert space $\mathcal{\mathscr{H}}={\mathcal{\mathscr{H}}}_1\otimes {\mathcal{\mathscr{H}}}_2\otimes \dots \otimes {\mathcal{\mathscr{H}}}_n$

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