Class qb_visitor

Defined in File qb_visitor.hpp

Inheritance Relationships

Base Type

public xacc::quantum::AllGateVisitor

Class Documentation

class qb_visitor : public xacc::quantum::AllGateVisitor

Visitor functions for gates and measurement.

void visit(Identity&) override: Identity (no-op)

void visit(Rx&) override: Rotation about x axis.

void visit(Ry&) override: Rotation about y axis.

void visit(CZ&) override: Controlled Z gate.

void visit(Rz&) override: Rotation about z axis.

void visit(Hadamard&) override: Hadamard gate.

void visit(CNOT&) override: Controlled NOT gate.

void visit(S&) override: S gate.

void visit(Sdg&) override: Inverse S gate.

void visit(T&) override: T gate.

void visit(Tdg&) override: Inverse T gate.

void visit(X&) override: Pauli X gate.

void visit(Y&) override: Pauli Y gate.

void visit(Z&) override: Pauli Z date.

void visit(CPhase&) override: Controlled phase gate.

void visit(Swap&) override: Swap the values of two qubits.

void visit(U&) override: General 1-qubit unitary.

void visit(Measure&) override: Measure a single qubit.

Public Functions

inline qb_visitor(const int nQubits, const bool cut_angles = true): Constructor.

inline virtual ~qb_visitor(): Destructor.

virtual const std::string name() const: Return name of the visitor.

virtual const std::string description() const: Return description of the visitor.

double norm(const double&): Normalise angles to the interval (-pi,pi].

std::string getXasmString(): Return the finished qpu OpenQasm kernel.

std::shared_ptr<xacc::CompositeInstruction> getTranspiledIR() const: Retrieved the IR tree in the basis gate set.

Protected Attributes

int nQubits_: Number of qubits.

unsigned int classicalBitCounter_ = 0: Number of classical bit registers to which measurements have been assigned.

std::map<unsigned int, unsigned int> qubitToClassicalBitIndex_: Map from qubit indices to assigned classical readout bit indices.

nlohmann::json sequence_: JSON for sequence of gates (XASM format)

const double pi = xacc::constants::pi: No point reinventing the circle is there?

bool restrict_angles_to_pmpi_: Restrict native gate rotation angles to (-pi,pi].