microsoft/qdk
Publicmirrored from https://github.com/microsoft/qdkAvailable
katas/content/distinguishing_states/four_orthogonal_two_qubit/Verification.qs
38lines · modecode
| 1 | namespace Kata.Verification { |
| 2 | open Microsoft.Quantum.Katas; |
| 3 | |
| 4 | // 0 - (|00⟩ + |01⟩ + |10⟩ + |11⟩) / 2 |
| 5 | // 1 - (|00⟩ - |01⟩ + |10⟩ - |11⟩) / 2 |
| 6 | // 2 - (|00⟩ + |01⟩ - |10⟩ - |11⟩) / 2 |
| 7 | // 3 - (|00⟩ - |01⟩ - |10⟩ + |11⟩) / 2 |
| 8 | operation StatePrep_TwoQubitState( |
| 9 | qs : Qubit[], |
| 10 | state : Int, |
| 11 | dummyVar : Double |
| 12 | ) : Unit is Adj { |
| 13 | StatePrep_BasisStateMeasurement(qs, state, dummyVar); |
| 14 | |
| 15 | H(qs[0]); |
| 16 | H(qs[1]); |
| 17 | } |
| 18 | |
| 19 | @EntryPoint() |
| 20 | operation CheckSolution() : Bool { |
| 21 | let isCorrect = DistinguishStates_MultiQubit( |
| 22 | 2, |
| 23 | 4, |
| 24 | StatePrep_TwoQubitState, |
| 25 | Kata.TwoQubitState, |
| 26 | false, |
| 27 | ["(|00⟩ + |01⟩ + |10⟩ + |11⟩) / 2", "(|00⟩ - |01⟩ + |10⟩ - |11⟩) / 2", "(|00⟩ + |01⟩ - |10⟩ - |11⟩) / 2", "(|00⟩ - |01⟩ - |10⟩ + |11⟩) / 2"] |
| 28 | ); |
| 29 | |
| 30 | if not isCorrect { |
| 31 | Message("Incorrect."); |
| 32 | } else { |
| 33 | Message("Correct!"); |
| 34 | } |
| 35 | |
| 36 | return isCorrect |
| 37 | } |
| 38 | } |
| 39 | |