qiskit.aqua.components.uncertainty_models.UniformDistribution

class UniformDistribution(num_target_qubits, low=0, high=1)

The Univariate Uniform Distribution.

Uniform distribution is defined by the number of qubits that should be used to represent the distribution, as well as the lower bound and upper bound of the considered interval.

Parâmetros

• num_target_qubits (int) – Number of qubits it acts on, has a minimum value of 1.

• low (float) – Lower bound, i.e., the value corresponding to |0…0> (assuming an equidistant grid)

• high (float) – Upper bound, i.e., the value corresponding to |1…1> (assuming an equidistant grid)

__init__(num_target_qubits, low=0, high=1)

Parâmetros

• num_target_qubits (int) – Number of qubits it acts on, has a minimum value of 1.

• low (float) – Lower bound, i.e., the value corresponding to |0…0> (assuming an equidistant grid)

• high (float) – Upper bound, i.e., the value corresponding to |1…1> (assuming an equidistant grid)

Methods

__init__(num_target_qubits[, low, high])	type num_target_qubits int
build(qc, q[, q_ancillas, params])
build_controlled(qc, q, q_control[, …])	Adds corresponding controlled sub-circuit to given circuit
build_controlled_inverse(qc, q, q_control[, …])	Adds controlled inverse of corresponding sub-circuit to given circuit
build_controlled_inverse_power(qc, q, …[, …])	Adds controlled, inverse, power of corresponding circuit.
build_controlled_power(qc, q, q_control, power)	Adds controlled power of corresponding circuit.
build_inverse(qc, q[, q_ancillas])	Adds inverse of corresponding sub-circuit to given circuit
build_inverse_power(qc, q, power[, q_ancillas])	Adds inverse power of corresponding circuit.
build_power(qc, q, power[, q_ancillas])	Adds power of corresponding circuit.
get_num_qubits()	returns number of qubits
get_num_qubits_controlled()	returns number of qubits controlled
pdf_to_probabilities(pdf, low, high, num_values)	Takes a probability density function (pdf), and returns a truncated and discretized array of probabilities corresponding to it
required_ancillas()	returns required ancillas
required_ancillas_controlled()	returns required ancillas controlled

Attributes

high	returns high
low	returns low
num_target_qubits	Returns the number of target qubits
num_values	returns number of values
probabilities	returns probabilities
values	returns values

build(qc, q, q_ancillas=None, params=None)

build_controlled(qc, q, q_control, q_ancillas=None, use_basis_gates=True)

Adds corresponding controlled sub-circuit to given circuit

Parâmetros

• qc (QuantumCircuit) – quantum circuit

• q (list) – list of qubits (has to be same length as self._num_qubits)

• q_control (Qubit) – control qubit

• q_ancillas (list) – list of ancilla qubits (or None if none needed)

• use_basis_gates (bool) – use basis gates for expansion of controlled circuit

build_controlled_inverse(qc, q, q_control, q_ancillas=None, use_basis_gates=True)

Adds controlled inverse of corresponding sub-circuit to given circuit

Parâmetros

• qc (QuantumCircuit) – quantum circuit

• q (list) – list of qubits (has to be same length as self._num_qubits)

• q_control (Qubit) – control qubit

• q_ancillas (list) – list of ancilla qubits (or None if none needed)

• use_basis_gates (bool) – use basis gates for expansion of controlled circuit

build_controlled_inverse_power(qc, q, q_control, power, q_ancillas=None, use_basis_gates=True)

Adds controlled, inverse, power of corresponding circuit. May be overridden if a more efficient implementation is possible

build_controlled_power(qc, q, q_control, power, q_ancillas=None, use_basis_gates=True)

Adds controlled power of corresponding circuit. May be overridden if a more efficient implementation is possible

build_inverse(qc, q, q_ancillas=None)

Adds inverse of corresponding sub-circuit to given circuit

Parâmetros

• qc (QuantumCircuit) – quantum circuit

• q (list) – list of qubits (has to be same length as self._num_qubits)

• q_ancillas (list) – list of ancilla qubits (or None if none needed)

build_inverse_power(qc, q, power, q_ancillas=None)

Adds inverse power of corresponding circuit. May be overridden if a more efficient implementation is possible

build_power(qc, q, power, q_ancillas=None)

Adds power of corresponding circuit. May be overridden if a more efficient implementation is possible

get_num_qubits()

returns number of qubits

get_num_qubits_controlled()

returns number of qubits controlled

property high

returns high

property low

returns low

property num_target_qubits

Returns the number of target qubits

property num_values

returns number of values

static pdf_to_probabilities(pdf, low, high, num_values)

Takes a probability density function (pdf), and returns a truncated and discretized array of probabilities corresponding to it

Parâmetros

• pdf (function) – probability density function

• low (float) – lower bound of equidistant grid

• high (float) – upper bound of equidistant grid

• num_values (int) – number of grid points

Retorna

array of probabilities

Tipo de retorno

list

property probabilities

returns probabilities

required_ancillas()

returns required ancillas

required_ancillas_controlled()

returns required ancillas controlled

property values

returns values