core.modeler.hamiltonian_expr

Classes

HamiltonianExpr	Hamiltonian expression class.
HamiltonianBuilder	Hamiltonian builder class.

Module Contents

class HamiltonianExpr(expr, name: str = '')

Hamiltonian expression class.

hamiltonian

Hamiltonian expression.

name

Name of the Hamiltonian expression.

Type:

str

N = jm.Placeholder("N")
Z = PauliExpr.z(shape=(N,))
i = jm.Element("i", belong_to = (0,N - 1))
h_expr = HamiltonianExpr(jm.sum(i, Z[i] * Z[i+1]))

hamiltonian

name = ''

class HamiltonianBuilder(hamiltonian_expr: HamiltonianExpr, instance_data: dict)

Hamiltonian builder class.

hamiltonian_expr

Hamiltonian expression.

Type:

HamiltonianExpr

instance_data

Instance data.

Type:

dict

Example

>>> Z = PauliExpr.z(shape=(3,))
>>> i = jm.Element("i", belong_to = (0, 3))
>>> h_expr = HamiltonianExpr(jm.sum(i, Z[i]))
>>> builder = HamiltonianBuilder(h_expr,{})
>>> h = builder.build()
Hamiltonian((Z0,): 1.0, (Z1,): 1.0, (Z2,): 1.0)

hamiltonian_expr

instance_data

make_substituted_hamiltonian()

Make substituted Hamiltonian.

This method substitutes the Hamiltonian expression with the given instance data.

make_qubit_index_mapper()

Make qubit index mapper.

This method creates a mapper from the operator index to the quantum bit index.

make_reverse_var_map()

Make mapper from the index to the Pauli operator.

make_hamiltonian_operator() → qamomile.core.operator.Hamiltonian

Make Qamomile Hamiltonian operator.

Returns:

Qamomile Hamiltonian operator.

Return type:

qm_o.Hamiltonian

build() → qamomile.core.operator.Hamiltonian

Build Qamomile Hamiltonian operator.

Returns:

Qamomile Hamiltonian operator.

Return type:

qm_o.Hamiltonian