Note

This is the documentation for the current state of the development branch of Qiskit Experiments. The documentation or APIs here can change prior to being released.

FixedFrequencyTransmon

class FixedFrequencyTransmon(basis_gates=None, default_values=None, link_parameters=True)

A library of gates for fixed-frequency superconducting qubit architectures.

Note that for now this library supports single-qubit gates and will be extended in the future.

Provided gates:

• x: $\pi$ pulse around the x-axis.

• sx: $\pi /2$ pulse around the x-axis.

• y: $\pi$ pulse around the y-axis.

• sy: $\pi /2$ pulse around the y-axis.

Pulse parameters:

• duration: Duration of the pulses Default value: 160 samples.

• σ: Standard deviation of the pulses Default value: duration / 4.

• β: DRAG parameter of the pulses Default value: 0.

• amp: Amplitude of the pulses. If the parameters are linked then x and y share the same parameter and sx and sy share the same parameter. Default value: 50% of the maximum output for x and y and 25% of the maximum output for sx and sy. Note that the user provided default amplitude in the __init__ method sets the default amplitude of the x and y pulses. The amplitude of the sx and sy pulses is half the provided value.

Note that the β and amp parameters may be linked between the x and y as well as between the sx and sy pulses. All pulses share the same duration and σ parameters.

Setup the schedules.

Parameters:

• basis_gates (Optional[List[str]]) – The basis gates to generate.

• default_values (Optional[Dict]) – Default values for the parameters this dictionary can contain the following keys: “duration”, “amp”, “β”, and “σ”. If “σ” is not provided this library will take one fourth of the pulse duration as default value.

• link_parameters (bool) – If set to True, then the amplitude and DRAG parameters of the $X$ and $Y$ gates will be linked as well as those of the $SX$ and $SY$ gates.

Attributes

FixedFrequencyTransmon.basis_gates

Return the basis gates supported by the library.

Methods

FixedFrequencyTransmon.__getitem__(name)	Return the schedule.
FixedFrequencyTransmon.__len__()	The length of the library defined as the number of basis gates.
FixedFrequencyTransmon.config()	Return the settings used to initialize the library.
FixedFrequencyTransmon.default_values()	Return the default values for the parameters.
FixedFrequencyTransmon.from_config(config)	Deserialize the library given the input dictionary
FixedFrequencyTransmon.get(k[,d])
FixedFrequencyTransmon.items()
FixedFrequencyTransmon.keys()
FixedFrequencyTransmon.num_qubits(name)	Return the number of qubits that the schedule with the given name acts on.
FixedFrequencyTransmon.values()
FixedFrequencyTransmon.__len__()	The length of the library defined as the number of basis gates.
FixedFrequencyTransmon.__getitem__(name)	Return the schedule.