quemu

Quemu is an object-oriented quantum circuit simulation framework, providing utility for building and running custom quantum circuits. In quemu, a user is able to incrementally create quantum gates and add them to a custom circuit. To do so, the user constructs an instance of CircuitBuilder, and adds instances of Gate. After the appropriate gates have been added, the user calls CircuitBuilder::Getto retrieve a finished Circuit instance.

// Use CircuitBuilder to construct a Circuit instance.
auto builder = CircuitBuilder();
auto circuit = builder.BuildCircuit()
                     .AddGateX(1, 0)
                     .AddGateY(2, 0)
                     .Get();

An instance of Circuit can be used to transform an instance of State, through the Circuit::Transform method. When invoked on a single instance of State, the transform is performed in place, in which case the state belongs to the circuit's input register prior to the transform, and the output register after the transform.

const auto num_qubits = 4;

// In-place transform
auto state = State(num_qubits);
const auto success = circuit->Transform(state);

When performing the transform out-of-place, the input and output registers are defined separately.

const auto num_qubits = 4;

// Out-of-place transform
auto input = State(num_qubits);
auto output = State(num_qubits);
const auto success = circuit->Transform(input, output);

Documentation

Further documentation can be found here