qxmt.feature_maps.pennylane.ising module

qxmt.feature_maps.pennylane.ising module#

class qxmt.feature_maps.pennylane.ising.XXFeatureMap(n_qubits, reps)

Bases: BaseFeatureMap

XX feature map class.

Parameters:

  • BaseFeatureMap (_type_) – base feature map class

  • n_qubits (int)

  • reps (int)

Example

>>> import numpy as np
>>> from qxmt.feature_maps.pennylane.ising import XXFeatureMap
>>> feature_map = XXFeatureMap(2, 2)
>>> feature_map.draw(x_dim=2)
0: ──RX(0.33)─╭IsingXX(15.19)──RX(0.33)─╭IsingXX(15.19)─┤
1: ──RX(0.44)─╰IsingXX(15.19)──RX(0.44)─╰IsingXX(15.19)─┤
__init__(n_qubits, reps)

Initialize the XX feature map class.

Parameters:

  • n_qubits (int) – number of qubits

  • reps (int) – number of repetitions

Return type:

None

feature_map(x)

Create quantum circuit of XX feature map.

Parameters:

x (np.ndarray) – input data

Return type:

None

class qxmt.feature_maps.pennylane.ising.YYFeatureMap(n_qubits, reps)

Bases: BaseFeatureMap

YY feature map class.

Parameters:

  • BaseFeatureMap (_type_) – base feature map class

  • n_qubits (int)

  • reps (int)

Example

>>> import numpy as np
>>> from qxmt.feature_maps.pennylane.ising import YYFeatureMap
>>> feature_map = YYFeatureMap(2, 2)
>>> feature_map.draw(x_dim=2)
0: ──H──RY(0.86)─╭IsingYY(11.23)──H──RY(0.86)─╭IsingYY(11.23)─┤
1: ──H──RY(0.68)─╰IsingYY(11.23)──H──RY(0.68)─╰IsingYY(11.23)─┤
__init__(n_qubits, reps)

Initialize the YY feature map class.

Parameters:

  • n_qubits (int) – number of qubits

  • reps (int) – number of repetitions

Return type:

None

feature_map(x)

Create quantum circuit of YY feature map.

Parameters:

x (np.ndarray) – input data

Return type:

None

class qxmt.feature_maps.pennylane.ising.ZZFeatureMap(n_qubits, reps)

Bases: BaseFeatureMap

ZZ feature map class.

Parameters:

  • BaseFeatureMap (_type_) – base feature map class

  • n_qubits (int)

  • reps (int)

Example

>>> import numpy as np
>>> from qxmt.feature_maps.pennylane.ising import ZZFeatureMap
>>> feature_map = ZZFeatureMap(2, 2)
>>> feature_map.draw(x_dim=2)
0: ──H──RZ(0.88)─╭IsingZZ(13.28)──H──RZ(0.88)─╭IsingZZ(13.28)─┤
1: ──H──RZ(0.20)─╰IsingZZ(13.28)──H──RZ(0.20)─╰IsingZZ(13.28)─┤
__init__(n_qubits, reps)

Initialize the ZZ feature map class.

Parameters:

  • n_qubits (int) – number of qubits

  • reps (int) – number of repetitions

Return type:

None

feature_map(x)

Create quantum circuit of ZZ feature map.

Parameters:

x (np.ndarray) – input data

Return type:

None