plot_state_hinton
plot_state_hinton(rho, title='', figsize=None, ax_real=None, ax_imag=None)
Plot a hinton diagram for the quantum state.
Parameters
- rho (ndarray) – Numpy array for state vector or density matrix.
- title (str) – a string that represents the plot title
- figsize (tuple) – Figure size in inches.
- ax_real (matplotlib.axes.Axes) – An optional Axes object to be used for the visualization output. If none is specified a new matplotlib Figure will be created and used. If this is specified without an ax_imag only the real component plot will be generated. Additionally, if specified there will be no returned Figure since it is redundant.
- ax_imag (matplotlib.axes.Axes) – An optional Axes object to be used for the visualization output. If none is specified a new matplotlib Figure will be created and used. If this is specified without an ax_imag only the real component plot will be generated. Additionally, if specified there will be no returned Figure since it is redundant.
Returns
The matplotlib.Figure of the visualization if neither ax_real or ax_imag is set.
Return type
matplotlib.Figure
Raises
ImportError – Requires matplotlib.
Example
from qiskit import QuantumCircuit, BasicAer, execute
from qiskit.visualization import plot_state_hinton
%matplotlib inline
qc = QuantumCircuit(2, 2)
qc.h(0)
qc.cx(0, 1)
qc.measure([0, 1], [0, 1])
backend = BasicAer.get_backend('statevector_simulator')
job = execute(qc, backend).result()
plot_state_hinton(job.get_statevector(qc), title="New Hinton Plot")
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