Abstract analog backend functions

BaseQuTiPObservablesParser

Convert InputType object to Qutip native quantum objects for simulation on QuTiP.

It is intended to be used on the expectation method of Pulser-based interface classes. InputType can be qadence2-expressions expression or any other module with the same methods.

build(num_qubits, observables) classmethod

Parses an input expression or list of expressions into a native QuTiP object.

PARAMETER	DESCRIPTION
num_qubits	the number of qubits to create the qutip object to TYPE: int
observables	the input expression. Any qadence2-expressions expression compatible object, with the same methods TYPE: (list[InputType], InputType)

RETURNS	DESCRIPTION
list[Qobj]	A QuTiP object with the Hilbert space compatible with num_qubits

Source code in qadence2_platforms/backends/_base_analog/functions.py

@classmethod
def build(cls, num_qubits: int, observables: list[InputType] | InputType) -> list[qutip.Qobj]:
    """
    Parses an input expression or list of expressions into a native QuTiP object.

    Args:
        num_qubits (int): the number of qubits to create the qutip object to
        observables (list[InputType], InputType): the input expression. Any
            qadence2-expressions expression compatible object, with the same
            methods

    Returns:
        A QuTiP object with the Hilbert space compatible with `num_qubits`
    """
    if not isinstance(observables, list):
        return [cls._get_op(num_qubits, observables)]
    return cls._iterate_over_obs(num_qubits, observables)

base_parse_native_observables(num_qubits, observable)

Function to be called by Interface's expectation method on Pulser-based backends using QuTiP emulator.

PARAMETER	DESCRIPTION
num_qubits	number of qubits TYPE: int
observable	the input expression. Any qadence2-expressions expression compatible object, with the same methods, or a list of it TYPE: list[InputType] | InputType

RETURNS	DESCRIPTION
list[Qobj]	A QuTiP object with the Hilbert space compatible with num_qubits

Source code in qadence2_platforms/backends/_base_analog/functions.py

def base_parse_native_observables(
    num_qubits: int, observable: list[InputType] | InputType
) -> list[qutip.Qobj]:
    """
    Function to be called by `Interface`'s `expectation` method on Pulser-based backends
    using QuTiP emulator.

    Args:
        num_qubits (int): number of qubits
        observable (list[InputType] | InputType): the input expression. Any
            qadence2-expressions expression compatible object, with the same
            methods, or a list of it

    Returns:
        A QuTiP object with the Hilbert space compatible with `num_qubits`
    """
    return BaseQuTiPObservablesParser.build(num_qubits, observable)