qrisp.QuantumArray.get_measurement

QuantumArray.get_measurement(backend=None, shots=10000, compile=True, compilation_kwargs={}, subs_dic={}, circuit_preprocessor=None, precompiled_qc=None)

Method for acquiring measurement results for the given array. The semantics are similar to the get_measurement method of QuantumVariable. The results are returned as a dictionary of another numpy subtype called OutcomeArray.

Parameters

backendBackendClient, optional

The backend on which to evaluate the quantum circuit. The default can be specified in the file default_backend.py.

shotsinteger, optional

The amount of shots to evaluate the circuit. The default is 10000.

compilebool, optional

Boolean indicating if the .compile method of the underlying QuantumSession should be called before. The default is True.

compilation_kwargsdict, optional

Keyword arguments for the compile method. For more details check QuantumSession.compile. The default is {}.

subs_dicdict, optional

A dictionary of sympy symbols and floats to specify parameters in the case of a circuit with unspecified, abstract parameters. The default is {}.

circuit_preprocessorPython function, optional

A function which recieves a QuantumCircuit and returns one, which is applied after compilation and parameter substitution. The default is None.

Returns

list of tuples

The measurement results in the form [(outcome_label, probability), …].

Raises

Exception

Tried to get measurement within open environment.

Examples

>>> from qrisp import QuantumFloat, QuantumArray
>>> qtype = QuantumFloat(3)
>>> q_array = QuantumArray(qtype)
>>> q_array[:] = [[1,0],[0,1]]
>>> res = q_array.get_measurement()
>>> print(res)
{OutcomeArray([[1, 0],
               [0, 1]]): 1.0}