qib.operator.fermi_hubbard_hamiltonian.FermiHubbardHamiltonian

class qib.operator.fermi_hubbard_hamiltonian.FermiHubbardHamiltonian(field: Field, t: float, u: float, spin=True)

Bases: AbstractOperator

Fermi-Hubbard Hamiltonian with

• kinetic hopping coefficient t

• potential interaction strength u

on a lattice.

Methods

as_field_operator	Represent the Hamiltonian as FieldOperator.
as_matrix	Generate the (sparse) matrix representation of the Hamiltonian.
fields	List of fields the Hamiltonian acts on.
is_hermitian	Whether the Hamiltonian is Hermitian.
is_unitary	Whether the Hamiltonian is unitary.

Attributes

nsites

Number of underlying lattice sites.

as_field_operator()

Represent the Hamiltonian as FieldOperator.

as_matrix()

Generate the (sparse) matrix representation of the Hamiltonian.

fields()

List of fields the Hamiltonian acts on.

is_hermitian()

Whether the Hamiltonian is Hermitian.

is_unitary()

Whether the Hamiltonian is unitary.

property nsites: int

Number of underlying lattice sites.