measure.hpp

/** @file
 * @author Tyson Jones
 * 
 * @defgroup testutilsmeasure Measure
 * @ingroup testutils
 * @brief
 * Testing utilities which evaluate measurements upon
 * reference qvector and qmatrix states. These are slow, 
 * serial, un-optimised, defensively-designed routines.
 * @{
 */
 
#ifndef MEASURE_HPP
#define MEASURE_HPP
 
#include "quest/include/quest.h"
 
#include "qvector.hpp"
#include "qmatrix.hpp"
 
 
qcomp getReferenceExpectationValue(qvector state, qmatrix observable);
qcomp getReferenceExpectationValue(qmatrix state, qmatrix observable);
 
qcomp getReferenceExpectationValue(qvector state, PauliStr str);
qcomp getReferenceExpectationValue(qmatrix state, PauliStr str);
 
qcomp getReferenceExpectationValue(qvector state, PauliStrSum sum);
qcomp getReferenceExpectationValue(qmatrix state, PauliStrSum sum);
 
qreal getReferenceProbability(qvector state);
qreal getReferenceProbability(qmatrix state);
 
qreal getReferenceProbability(qvector state, qindex basisIndex);
qreal getReferenceProbability(qmatrix state, qindex basisIndex);
 
qreal getReferenceProbability(qvector state, vector<int> targets, vector<int> outcomes);
qreal getReferenceProbability(qmatrix state, vector<int> targets, vector<int> outcomes);
 
vector<qreal> getAllReferenceProbabilities(qvector state, vector<int> targets);
vector<qreal> getAllReferenceProbabilities(qmatrix state, vector<int> targets);
 
qreal getReferencePurity(qvector state);
qreal getReferencePurity(qmatrix state);
 
 
#endif // MEASURE_HPP
 
/** @} (end defgroup) */