qiskit.chemistry.drivers.PySCFDriver¶

class PySCFDriver(atom='H 0.0 0.0 0.0; H 0.0 0.0 0.735', unit=<UnitsType.ANGSTROM: 'Angstrom'>, charge=0, spin=0, basis='sto3g', hf_method=<HFMethodType.RHF: 'rhf'>, conv_tol=1e-09, max_cycle=50, init_guess=<InitialGuess.MINAO: 'minao'>, max_memory=None, molecule=None)[código fonte]¶

Qiskit chemistry driver using the PySCF library.

See https://sunqm.github.io/pyscf/

Parâmetros

atom (Union[str, List[str]]) – Atom list or string separated by semicolons or line breaks. Each element in the list is an atom followed by position e.g. H 0.0 0.0 0.5. The preceding example shows the XYZ format for position but Z-Matrix format is supported too here.
unit (UnitsType) – Angstrom or Bohr
charge (int) – Charge on the molecule
spin (int) – Spin (2S), in accordance with how PySCF defines a molecule in pyscf.gto.mole.Mole
basis (str) – Basis set
hf_method (HFMethodType) – Hartree-Fock Method type
conv_tol (float) – Convergence tolerance see PySCF docs and pyscf/scf/hf.py
max_cycle (int) – Max convergence cycles see PySCF docs and pyscf/scf/hf.py, has a min. value of 1.
init_guess (InitialGuess) – See PySCF pyscf/scf/hf.py init_guess_by_minao/1e/atom methods
max_memory (Optional[int]) – Maximum memory that PySCF should use
molecule (Optional[Molecule]) – A driver independent Molecule definition instance may be provided. When a molecule is supplied the atom, unit, charge and spin parameters are all ignored as the Molecule instance now defines these instead. The Molecule object is read when the driver is run and converted to the driver dependent configuration for the computation. This allows, for example, the Molecule geometry to be updated to compute different points.

Levanta

QiskitChemistryError – Invalid Input

__init__(atom='H 0.0 0.0 0.0; H 0.0 0.0 0.735', unit=<UnitsType.ANGSTROM: 'Angstrom'>, charge=0, spin=0, basis='sto3g', hf_method=<HFMethodType.RHF: 'rhf'>, conv_tol=1e-09, max_cycle=50, init_guess=<InitialGuess.MINAO: 'minao'>, max_memory=None, molecule=None)[código fonte]¶

Parâmetros

atom (Union[str, List[str]]) – Atom list or string separated by semicolons or line breaks. Each element in the list is an atom followed by position e.g. H 0.0 0.0 0.5. The preceding example shows the XYZ format for position but Z-Matrix format is supported too here.
unit (UnitsType) – Angstrom or Bohr
charge (int) – Charge on the molecule
spin (int) – Spin (2S), in accordance with how PySCF defines a molecule in pyscf.gto.mole.Mole
basis (str) – Basis set
hf_method (HFMethodType) – Hartree-Fock Method type
conv_tol (float) – Convergence tolerance see PySCF docs and pyscf/scf/hf.py
max_cycle (int) – Max convergence cycles see PySCF docs and pyscf/scf/hf.py, has a min. value of 1.
init_guess (InitialGuess) – See PySCF pyscf/scf/hf.py init_guess_by_minao/1e/atom methods
max_memory (Optional[int]) – Maximum memory that PySCF should use
molecule (Optional[Molecule]) – A driver independent Molecule definition instance may be provided. When a molecule is supplied the atom, unit, charge and spin parameters are all ignored as the Molecule instance now defines these instead. The Molecule object is read when the driver is run and converted to the driver dependent configuration for the computation. This allows, for example, the Molecule geometry to be updated to compute different points.

Levanta

QiskitChemistryError – Invalid Input

Methods

__init__([atom, unit, charge, spin, basis, …])

type atom: Union[str, List[str]]

run()

Runs driver to produce a QMolecule output.

Attributes

`basis`	return basis
`hf_method`	return Hartree-Fock method
`molecule`	return molecule
`supports_molecule`	True for derived classes that support Molecule.

property basis¶

return basis

Tipo de retorno: str

property hf_method¶

return Hartree-Fock method

Tipo de retorno: str

property molecule¶

return molecule

Tipo de retorno: Optional[Molecule]

run()[código fonte]¶

Runs driver to produce a QMolecule output.

Tipo de retorno: QMolecule
Retorna: A QMolecule containing the molecular data.

property supports_molecule¶

True for derived classes that support Molecule.

Tipo de retorno: bool
Retorna: True if Molecule is supported.