UniformDistribution
class UniformDistribution(num_qubits, name='P(X)')
Bases: qiskit.circuit.quantumcircuit.QuantumCircuit
A circuit to encode a discretized uniform distribution in qubit amplitudes.
This simply corresponds to applying Hadamard gates on all qubits.
The probability density function of the discretized uniform distribution on values is
This circuit considers , where num_qubits and prepares the state
Examples
>>> circuit = UniformDistribution(3)
>>> circuit.decompose().draw()
┌───┐
q_0: ┤ H ├
├───┤
q_1: ┤ H ├
├───┤
q_2: ┤ H ├
└───┘Parameters
- num_qubits (
int) – The number of qubits in the circuit, the distribution is uniform over2 ** num_qubitsvalues. - name (
str) – The name of the circuit.
Attributes
ancillas
Returns a list of ancilla bits in the order that the registers were added.
calibrations
Return calibration dictionary.
The custom pulse definition of a given gate is of the form
{‘gate_name’: {(qubits, params): schedule}}
clbits
Returns a list of classical bits in the order that the registers were added.
data
Return the circuit data (instructions and context).
Returns
a list-like object containing the tuples for the circuit’s data.
Each tuple is in the format (instruction, qargs, cargs), where instruction is an Instruction (or subclass) object, qargs is a list of Qubit objects, and cargs is a list of Clbit objects.
Return type
QuantumCircuitData
extension_lib
Default value: 'include "qelib1.inc";'
global_phase
Return the global phase of the circuit in radians.
header
Default value: 'OPENQASM 2.0;'
instances
Default value: 16
metadata
The user provided metadata associated with the circuit
The metadata for the circuit is a user provided dict of metadata for the circuit. It will not be used to influence the execution or operation of the circuit, but it is expected to be passed between all transforms of the circuit (ie transpilation) and that providers will associate any circuit metadata with the results it returns from execution of that circuit.
num_ancillas
Return the number of ancilla qubits.
num_clbits
Return number of classical bits.
num_parameters
Convenience function to get the number of parameter objects in the circuit.
num_qubits
Return number of qubits.
parameters
Convenience function to get the parameters defined in the parameter table.
prefix
Default value: 'circuit'
qubits
Returns a list of quantum bits in the order that the registers were added.