Unary Iteration

Functions:

Name	Description
`unary_select`	[Qmod Classiq-library function].

unary_select

unary_select(
unitaries: QCallableList,
selector: Const[QNum]
) -> None

[Qmod Classiq-library function] Implements an unconditional SELECT oracle using unary iteration (Babbush et al., arXiv:1805.03662, Section III.A). The operation maps:

|\ell\rangle|\psi\rangle \to |\ell\rangle\, U_\ell\,|\psi\rangle

Uses the MSB of the selector as the root branch indicator, requiring one fewer auxiliary qubit than a controlled variant would. Parameters:

Name	Type	Description	Default
`unitaries`	`QCallableList`	Quantum callables $U_0, \ldots, U_\{L-1\}$ .	required
`selector`	`Const[QNum]`	Quantum register encoding the index $\ell$ in binary.	required

Providers

Applications

Qmod

unary_select

​unary_select

unary_select