/*
* public PPTCriterion(QuantumState state)
* {
* State = state;
* StateOperator = StateOperator.FromQuantumState(state);
* }
*
* public PPTCriterion(StateOperator @operator)
* {
* StateOperator = @operator;
* }
*/
public void Evaluate(StateOperator state, SystemBipartition bipartition)
{
EvaluatedMatrix = state.PartialTranspose(bipartition);
Evd <Complex> evd = EvaluatedMatrix.Matrix.Evd();
Eigenvalues = evd.EigenValues.ToArray();
}
private void Reshuffle(StateOperator state, SystemBipartition bipartition)
{
EvaluatedMatrix = new Transformation(CreateMatrix.Dense <Complex>(state.RowDimension, state.ColumnDimension));
int rowOffset = 0, columnOffset = 0;
for (int i = 0; i < state.RowDimension; i++)
{
int reshRowStart = rowOffset * bipartition.DimensionA, reshColumnStart = columnOffset * bipartition.DimensionB;
int reshRowIterator = reshRowStart, reshColumnIterator = reshColumnStart;
int reshColumnLimit = reshColumnStart + bipartition.DimensionB;
for (int j = 0; j < state.RowDimension; j++)
{
EvaluatedMatrix[reshRowIterator, reshColumnIterator] = state[i, j];
reshColumnIterator++;
if (reshColumnIterator == reshColumnLimit)
{
reshColumnIterator = reshColumnStart;
reshRowIterator++;
}
}
columnOffset++;
if (columnOffset == bipartition.DimensionA)
{
columnOffset = 0;
rowOffset++;
}
}
}
public override void Evaluate(QuantumState state, SystemBipartition bipartition)
{
if (state.Size == 1)
{
SigmaRank = 1;
}
else
{
EvaluatedMatrix = Transformation.FromStateRowWise(state, bipartition);
Decompose(EvaluatedMatrix);
}
}
private void Qubits_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//if(!EvaluationAvailable) { sizeChosen = true; CanEvaluate(); }
if (!Partition.IsEnabled)
{
Partition.IsEnabled = true;
}
int selectedPartition = Partition.SelectedIndex;
int qubits = (int)Qubits.SelectedItem;
Bipartition = new SystemBipartition(qubits);
SetPartitions();
Partition.SelectedIndex =
(selectedPartition >= Partition.Items.Count) ||
(selectedPartition == -1) ? 0 : selectedPartition;
ResizeDefinitionMatrix();
}
public abstract void DisplayResults(StateOperator @operator, SystemBipartition bipartition);
public abstract void DisplayResults(QuantumState state, SystemBipartition bipartition);
public override void DisplayResults(StateOperator @operator, SystemBipartition bipartition)
{
Criterion.Evaluate(@operator, bipartition);
SetVisuals((ComputableCrossNormCriterion)Criterion);
}
public override void DisplayResults(QuantumState state, SystemBipartition bipartition)
{
DisplayResults(StateOperator.FromQuantumState(state), bipartition);
}
//public SchmidtDecomposition(QuantumState state) : base(state) { }
public override void Evaluate(StateOperator state, SystemBipartition bipartition)
{
throw new NotImplementedException();
}
public override void Evaluate(StateOperator state, SystemBipartition bipartition)
{
Reshuffle(state, bipartition);
Decompose(EvaluatedMatrix);
}
//public ComputableCrossNormCriterion(QuantumState state) : base(state) { }
//public ComputableCrossNormCriterion(StateOperator @operator) : base(@operator) { }
public override void Evaluate(QuantumState state, SystemBipartition bipartition)
{
Evaluate(StateOperator.FromQuantumState(state), bipartition);
}
public override void DisplayResults(StateOperator @operator, SystemBipartition bipartition)
{
throw new NotImplementedException();
}
public override void DisplayResults(QuantumState state, SystemBipartition bipartition)
{
Criterion.Evaluate(state, bipartition);
SetVisuals((SchmidtDecomposition)Criterion);
}
public abstract void Evaluate(StateOperator state, SystemBipartition bipartition);
//public QuantumState State { get; private set;}
//public StateOperator StateOperator { get; private set; }
/*
* public SvdEntanglementCriterion(QuantumState state)
* {
* State = state;
* StateOperator = StateOperator.FromQuantumState(state);
* }
*
* public SvdEntanglementCriterion(StateOperator state)
* {
* StateOperator = state;
* }
*/
public abstract void Evaluate(QuantumState state, SystemBipartition bipartition);
