QCircuit class - qartvm library

Constructors

QCircuit.new({required int size})

Properties

gates → Iterable<QCircuitGate>: Returns the QCircuitGate gates making up the circuit
no setter
hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
size → int: Returns the circuit's size (i.e. the number of qubits it works with)
final

Methods

addListener(void listener(int step, QCircuitGate? gate, QRegister qreg)) → QCircuit: Registers a listener which will be notified during execution after each gate for step == 0, gate is null and qreg is in the initial state for step > 0, gate is the stepth gate of the circuit and the state of qreg has already been transformed by the gate
compile() → void: Compile this QCircuit by multiplying the matrices of consecutive, non-measurement gates together Eventually, the original circuit will hold a sequence of custom Quantum gates + measurement gates If the circuit does not contain any measurement gates, it will be represented by a single custom gate
custom(dynamic qubits, ComplexMatrix gate, {dynamic controls, QGateType type = QGateType.custom, Map<String, dynamic>? params, String? label}) → QCircuit: Adds a custom gate to the circuit operating on qubits and optionally controlled by controls qubits. qubits and controls may be single ints or Iterables of ints. The gate may be represented by a 2x2 ComplexMatrix in which case qubits must contain a single qubit and controls must be null or empty. Alternatively, the gate may be represented by a square ComplexMatrix of size 2^size operating on the circuit's full state.
execute(QRegister qreg) → void: Executes the circuit with Quantum register qreg If the circuit has already been partially executed with step, the execution resumes from there. If the circuit has already been totally executed, execution restarts from scratch Listeners registered with addListener will be notified at each step
fredkin(Set<int> qubits, {required int control, String? label}) → QCircuit: Adds a Fredkin (C-SWAP) gate exchanging the supplied qubits and controlled by the control qubit qubits must be a Set containing 2 ints
hadamard(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a Hadamard gate operating on qubits and controlled by controls if provided
invQft(List<int> qubits, {bool swap = false, String? label}) → QCircuit: Adds an inverse Quantum Fourrier Transform (QFT) gate operating on supplied qubits
measure([Set<int>? qubits, String? label]) → QCircuit: Adds a measurement gate to the circuit Qubits qubits will be measured If qubits is null or empty, all qubits will be measured
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
not(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a Pauli X (NOT) gate operating on qubits
pauliX(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a Pauli X (NOT) gate operating on qubits and controlled by controls if provided
pauliY(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a Pauli Y gate operating on qubits
pauliZ(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a Pauli Z gate operating on qubits
phase(double radians, dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a phase gate operating on qubits with angle radians
phaseS(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a phase S gate operating on qubits
phaseT(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a phase T gate operating on qubits
qft(List<int> qubits, {bool swap = false, String? label}) → QCircuit: Adds a Quantum Fourrier Transform (QFT) gate operating on supplied qubits
removeListener(void listener(int step, QCircuitGate? gate, QRegister qreg)) → QCircuit: Removes a listener
sqrtOfNot(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a 'square root of not' (SQRT-NOT) gate operating on qubits
squareRootOfX(dynamic qubits, {dynamic controls, String? label}) → QCircuit: Adds a 'square root of not' (SQRT-NOT) gate operating on qubits
step(QRegister qreg) → bool: Executes a single gate of the circuit with Quantum register qreg Listeners registered with addListener will be notified Returns false after the last gate has been executed, true otherwise.
swap(Set<int> qubits, {String? label}) → QCircuit: Adds a swap gate exchanging the supplied qubits qubits must be a Set containing 2 ints
toffoli(int qubit, {required Set<int> controls, String? label}) → QCircuit: Adds a Toffoli (CC-NOT) gate operating on qubit and controlled by qubits supplied in controls controls must be a Set containing 2 ints
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited