Quantum Computing Simulator in Julia

Glossary of Quantum Computing Terms

• qubit: dimension
• amplitude: complex number
• outcome: binary string or integer
• state: vector of amplitudes corresponding to outcomes
• single-qubit gate: pairwise linear transformation of amplitudes (e.g. X, Z)
  • scaling: H
  • rotation: phase
  • controlled gates: transformation restricted to subsets of outcomes
• unitary matrix: matrix corresponding to state transformations

Sample Usage

@testset "Transform (loops vs matrices)" begin
    for n in 1:4
        state1 = init_state(Int(n))
        state2 = init_state(Int(n))

        for t in 0:n - 1
            transform!(state1, t, h)
            transform_with_matrix!(state2, t, h)
            @test state1 == state2
        end
    end
end