// This method computes the gate count of simulation by all configurations passed to it.
internal static async Task <IEnumerable <GateCountResults> > RunGateCount(
string filename, IntegralDataFormat format, IEnumerable <HamiltonianSimulationConfig> configurations,
string outputFolder = null
)
{
using var reader = File.OpenText(filename);
// To get the data for exporting to Q#, we proceed in several steps.
var jordanWignerEncoding =
// First, we deserialize the file given by filename, using the
// format given by format.
(format switch
{
IntegralDataFormat.Liquid => LiQuiDSerializer.Deserialize(reader),
IntegralDataFormat.Broombridge => BroombridgeSerializer.Deserialize(reader),
_ => throw new ArgumentException($"Invalid data format {format}.")
})
// This method computes the gate count of simulation by all configurations passed to it.
internal static async Task <IEnumerable <GateCountResults> > RunGateCount(
string filename, IntegralDataFormat format, IEnumerable <HamiltonianSimulationConfig> configurations,
string outputFolder = null
)
{
// To get the data for exporting to Q#, we proceed in several steps.
var jordanWignerEncoding =
// First, we deserialize the file given by filename, using the
// format given by format.
format.Map(
(IntegralDataFormat.Liquid, () => LiQuiD.Deserialize(filename).Select(o => o.OrbitalIntegralHamiltonian)),
(IntegralDataFormat.Broombridge, () => Broombridge.Deserializers.DeserializeBroombridge(filename).ProblemDescriptions.Select(o => o.OrbitalIntegralHamiltonian))
)
// In general, Broombridge allows for loading multiple Hamiltonians
// from a single file. For the purpose of simplicitly, however,
// we'll only load a single Hamiltonian from each file in this
// sample. We use .Single here instead of .First to make sure
// that we raise an error instead of silently discarding data.
.Single()
// Next, we convert to a fermionic Hamiltonian using the UpDown
// convention.
.ToFermionHamiltonian(IndexConvention.UpDown)
// Finally, we use the optimized Jordan–Wigner representation
// to convert to a qubit Hamiltonian that we can export to
// a format understood by Q#.
.ToPauliHamiltonian(Paulis.QubitEncoding.JordanWigner);
// We save the exported Q# data into a variable that we can pass
// to the trace simulator.
var qSharpData = jordanWignerEncoding
.ToQSharpFormat()
.Pad();
var gateCountResults = new List <GateCountResults>();
foreach (var config in configurations)
{
var results = await RunGateCount(qSharpData, config, outputFolder);
results.IntegralDataPath = filename;
results.SpinOrbitals = jordanWignerEncoding.SystemIndices.Count();
gateCountResults.Add(results);
}
return(gateCountResults);
}
// This method computes the gate count of simulation by all configurations passed to it.
internal static async Task <IEnumerable <GateCountResults> > RunGateCount(string filename, IntegralDataFormat format, IEnumerable <HamiltonianSimulationConfig> configurations)
{
// Read Hamiltonian terms from file.
IEnumerable <FermionHamiltonian> hamiltonians =
format.Map(
(IntegralDataFormat.Liquid, () => FermionHamiltonian.LoadFromLiquid(filename)),
(IntegralDataFormat.YAML, () => FermionHamiltonian.LoadFromYAML(filename))
);
var hamiltonian = hamiltonians.First();
// Process Hamiltonitn to obtain optimized Jordan-Wigner representation.
var jordanWignerEncoding = JordanWignerEncoding.Create(hamiltonian);
// Convert to format for consumption by Q# algorithms.
var qSharpData = jordanWignerEncoding.QSharpData();
var gateCountResults = new List <GateCountResults>();
foreach (var config in configurations)
{
GateCountResults results = await RunGateCount(qSharpData, config);
results.HamiltonianName = hamiltonian.Name;
results.IntegralDataPath = filename;
results.SpinOrbitals = jordanWignerEncoding.NSpinOrbitals;
gateCountResults.Add(results);
}
return(gateCountResults);
}
// This method computes the gate count of simulation by all configurations passed to it.
internal static async Task <IEnumerable <GateCountResults> > RunGateCount(string filename, IntegralDataFormat format, IEnumerable <HamiltonianSimulationConfig> configurations)
{
// Read Hamiltonian terms from file.
IEnumerable <OrbitalIntegrals.OrbitalIntegralHamiltonian> hamiltonians =
format.Map(
(IntegralDataFormat.Liquid, () => LiQuiD.Deserialize(filename).Select(o => o.OrbitalIntegralHamiltonian)),
(IntegralDataFormat.YAML, () => Broombridge.Deserializers.DeserializeBroombridge(filename).ProblemDescriptions.Select(o => o.OrbitalIntegralHamiltonian))
);
var hamiltonian = hamiltonians.First();
// Process Hamiltonitn to obtain optimized Jordan–Wigner representation.
var jordanWignerEncoding = hamiltonian
.ToFermionHamiltonian(IndexConvention.UpDown)
.ToPauliHamiltonian(Paulis.QubitEncoding.JordanWigner);
// Convert to format for consumption by Q# algorithms.
var qSharpData = jordanWignerEncoding.ToQSharpFormat().Pad();
var gateCountResults = new List <GateCountResults>();
foreach (var config in configurations)
{
GateCountResults results = await RunGateCount(qSharpData, config);
results.HamiltonianName = filename;
results.IntegralDataPath = filename;
results.SpinOrbitals = jordanWignerEncoding.SystemIndices.Count();
gateCountResults.Add(results);
}
return(gateCountResults);
}
