quil: An instruction set for quantum computing ============================================== This Haskell library implements the Quil language for quantum computing, as specified in "A Practical Quantum Instruction Set Architecture" <>, using the indexing conventions in <>. Please report issues at <>. Example ------- This example creates a wavefunction for the [Bell state](https://en.wikipedia.org/wiki/Bell_state) and then performs a measurement on its highest qubit. > import Control.Monad.Random (evalRandIO) > import Data.Qubit ((^^*), groundState) > import Data.Qubit.Gate (H, CNOT) > -- Construct the Bell state. > let bell = [h 0, cnot 0 1] ^^* groundState 2 > bell 0.7071067811865475|00> + 0.7071067811865475|11> @ [1,0] > -- Measure the Bell wavefunction. > bell' <- evalRandIO $ measure [1] bell > bell' ([(1,0)],1.0|00> @ [1,0]) > -- Measure it again. > evalRandIO $ measure [1] bell' ([(1,0)],1.0|00> @ [1,0]) > -- Measure another Bell wavefunction. > evalRandIO $ measure [1] bell ([(1,0)],1.0|00> @ [1,0]) > -- Measure another Bell wavefunction. > evalRandIO $ measure [1] bell ([(1,1)],1.0|11> @ [1,0])