"""This module implements functions for translating to and from QuTiP."""
from __future__ import annotations
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from qutip import QubitCircuit
from bqskit.ir.circuit import Circuit
from bqskit.ir.lang.qasm2 import OPENQASM2Language
[docs]
def qutip_to_bqskit(qc: QubitCircuit) -> Circuit:
"""Convert QuTiP's QubitCircuit `qc` to a BQSKit Circuit."""
try:
from qutip.qip.qasm import circuit_to_qasm_str
except ImportError as e:
raise ImportError(
'\n\nUnable to import qutip package.\n'
'Please ensure that it is installed with the following command:\n'
'\tpip install qutip\n',
) from e
circuit = OPENQASM2Language().decode(circuit_to_qasm_str(qc))
return circuit
[docs]
def bqskit_to_qutip(circuit: Circuit) -> QubitCircuit:
"""Convert a BQSKit Circuit to QuTiP's QubitCircuit."""
try:
from qutip.qip.qasm import read_qasm
except ImportError as e:
raise ImportError(
'\n\nUnable to import qutip package.\n'
'Please ensure that it is installed with the following command:\n'
'\tpip install qutip\n',
) from e
return read_qasm(OPENQASM2Language().encode(circuit), strmode=True)