Represents a system of qubits. More...

#include <QuEST.h>

Data Fields
int	chunkId
	The position of the chunk of the state vector held by this process in the full state vector. More...

CuQuantumConfig *	cuConfig

cuAmp *	cuStateVec
	Storage for wavefunction amplitues and config (copy of QuESTEnv's handle) in cuQuantum deployment. More...

cuAmp *	deviceCuStateVec

ComplexArray	deviceStateVec
	Storage for wavefunction amplitudes in the GPU version. More...

qreal *	firstLevelReduction
	Storage for reduction of probabilities on GPU. More...

int	isDensityMatrix
	Whether this instance is a density-state representation. More...

long long int	numAmpsPerChunk
	Number of probability amplitudes held in stateVec by this process In the non-MPI version, this is the total number of amplitudes. More...

long long int	numAmpsTotal
	Total number of amplitudes, which are possibly distributed among machines. More...

int	numChunks
	Number of chunks the state vector is broken up into – the number of MPI processes used. More...

int	numQubitsInStateVec
	Number of qubits in the state-vector - this is double the number represented for mixed states. More...

int	numQubitsRepresented
	The number of qubits represented in either the state-vector or density matrix. More...

ComplexArray	pairStateVec
	Temporary storage for a chunk of the state vector received from another process in the MPI version. More...

QASMLogger *	qasmLog
	Storage for generated QASM output. More...

qreal *	secondLevelReduction

ComplexArray	stateVec
	Computational state amplitudes - a subset thereof in the MPI version. More...

Detailed Description

Represents a system of qubits.

Qubits are zero-based

Author: Ania Brown; Tyson Jones (density matrix)

Field Documentation

◆ chunkId

int Qureg::chunkId

The position of the chunk of the state vector held by this process in the full state vector.

Referenced by areEqual(), reportQuregParams(), reportState(), and toQureg().

◆ cuConfig

CuQuantumConfig* Qureg::cuConfig

◆ cuStateVec

cuAmp* Qureg::cuStateVec

Storage for wavefunction amplitues and config (copy of QuESTEnv's handle) in cuQuantum deployment.

◆ deviceCuStateVec

cuAmp* Qureg::deviceCuStateVec

◆ deviceStateVec

ComplexArray Qureg::deviceStateVec

Storage for wavefunction amplitudes in the GPU version.

Referenced by copyStateFromGPU(), and copyStateToGPU().

◆ firstLevelReduction

qreal* Qureg::firstLevelReduction

Storage for reduction of probabilities on GPU.

◆ isDensityMatrix

int Qureg::isDensityMatrix

Whether this instance is a density-state representation.

Referenced by applyDiagonalOp(), applyGateMatrixN(), applyGateSubDiagonalOp(), applyMultiControlledGateMatrixN(), applyMultiVarPhaseFunc(), applyMultiVarPhaseFuncOverrides(), applyNamedPhaseFunc(), applyNamedPhaseFuncOverrides(), applyParamNamedPhaseFunc(), applyParamNamedPhaseFuncOverrides(), applyPhaseFunc(), applyPhaseFuncOverrides(), applyProjector(), areEqual(), assertQuregAndRefInDebugState(), calcExpecDiagonalOp(), calcFidelity(), calcProbOfAllOutcomes(), calcProbOfOutcome(), calcTotalProb(), collapseToOutcome(), compactUnitary(), controlledCompactUnitary(), controlledMultiQubitUnitary(), controlledNot(), controlledPauliY(), controlledPhaseFlip(), controlledPhaseShift(), controlledRotateAroundAxis(), controlledRotateX(), controlledRotateY(), controlledRotateZ(), controlledTwoQubitUnitary(), controlledUnitary(), createCloneQureg(), createDensityQureg(), createQureg(), diagonalUnitary(), hadamard(), initClassicalState(), initPlusState(), initPureState(), measure(), measureWithStats(), multiControlledMultiQubitNot(), multiControlledMultiQubitUnitary(), multiControlledMultiRotatePauli(), multiControlledMultiRotateZ(), multiControlledPhaseFlip(), multiControlledPhaseShift(), multiControlledTwoQubitUnitary(), multiControlledUnitary(), multiQubitNot(), multiQubitUnitary(), multiRotatePauli(), multiRotateZ(), multiStateControlledUnitary(), pauliX(), pauliY(), pauliZ(), phaseShift(), rotateAroundAxis(), rotateX(), rotateY(), rotateZ(), sGate(), sqrtSwapGate(), swapGate(), TEST_CASE(), tGate(), toQMatrix(), toQureg(), toQVector(), twoQubitUnitary(), and unitary().

◆ numAmpsPerChunk

long long int Qureg::numAmpsPerChunk

Number of probability amplitudes held in stateVec by this process In the non-MPI version, this is the total number of amplitudes.

Referenced by areEqual(), copyStateFromGPU(), copyStateToGPU(), reportState(), TEST_CASE(), toQMatrix(), toQureg(), and toQVector().

◆ numAmpsTotal

long long int Qureg::numAmpsTotal

Total number of amplitudes, which are possibly distributed among machines.

Referenced by areEqual(), assertQuregAndRefInDebugState(), copyStateFromGPU(), copyStateToGPU(), getNumAmps(), initStateFromAmps(), TEST_CASE(), toQMatrix(), toQureg(), and toQVector().

◆ numChunks

int Qureg::numChunks

Number of chunks the state vector is broken up into – the number of MPI processes used.

Referenced by reportQuregParams().

◆ numQubitsInStateVec

int Qureg::numQubitsInStateVec

Number of qubits in the state-vector - this is double the number represented for mixed states.

Referenced by createCloneQureg(), createDensityQureg(), createQureg(), reportQuregParams(), and TEST_CASE().

◆ numQubitsRepresented

int Qureg::numQubitsRepresented

The number of qubits represented in either the state-vector or density matrix.

Referenced by applyFullQFT(), applyGateMatrixN(), applyGateSubDiagonalOp(), applyMultiControlledGateMatrixN(), applyMultiVarPhaseFunc(), applyMultiVarPhaseFuncOverrides(), applyNamedPhaseFunc(), applyNamedPhaseFuncOverrides(), applyParamNamedPhaseFunc(), applyParamNamedPhaseFuncOverrides(), applyPauliSum(), applyPhaseFunc(), applyPhaseFuncOverrides(), assertQuregAndRefInDebugState(), calcExpecPauliSum(), compactUnitary(), controlledCompactUnitary(), controlledMultiQubitUnitary(), controlledNot(), controlledPauliY(), controlledPhaseFlip(), controlledPhaseShift(), controlledRotateAroundAxis(), controlledRotateX(), controlledRotateY(), controlledRotateZ(), controlledTwoQubitUnitary(), controlledUnitary(), createCloneQureg(), createDensityQureg(), createQureg(), diagonalUnitary(), getDensityAmp(), getNumQubits(), hadamard(), multiControlledMultiQubitNot(), multiControlledMultiQubitUnitary(), multiControlledMultiRotatePauli(), multiControlledMultiRotateZ(), multiControlledPhaseFlip(), multiControlledPhaseShift(), multiControlledTwoQubitUnitary(), multiControlledUnitary(), multiQubitNot(), multiQubitUnitary(), multiRotatePauli(), multiRotateZ(), multiStateControlledUnitary(), pauliX(), pauliY(), pauliZ(), phaseShift(), rotateAroundAxis(), rotateX(), rotateY(), rotateZ(), setDensityAmps(), sGate(), sqrtSwapGate(), swapGate(), TEST_CASE(), tGate(), toQMatrix(), toQureg(), twoQubitUnitary(), and unitary().

◆ pairStateVec

ComplexArray Qureg::pairStateVec

Temporary storage for a chunk of the state vector received from another process in the MPI version.

◆ qasmLog

QASMLogger* Qureg::qasmLog

Storage for generated QASM output.

◆ secondLevelReduction

qreal * Qureg::secondLevelReduction

◆ stateVec

ComplexArray Qureg::stateVec

Computational state amplitudes - a subset thereof in the MPI version.