# from_ising¶

from_ising(qubit_op, offset=0.0, linear=False)[source]

Create a quadratic program from a qubit operator and a shift value.

Variables are mapped to qubits in the same order, i.e., i-th variable is mapped to i-th qubit. See https://github.com/Qiskit/qiskit-terra/issues/1148 for details.

Parameters
• qubit_op (Union[OperatorBase, PauliSumOp]) – The qubit operator of the problem.

• offset (float) – The constant term in the Ising Hamiltonian.

• linear (bool) – If linear is True, $$x^2$$ is treated as a linear term since $$x^2 = x$$ for $$x \in \{0,1\}$$. Otherwise, $$x^2$$ is treat as a quadratic term. The default value is False.

Return type

QuadraticProgram

Returns

The quadratic program corresponding to the qubit operator.

Raises