GR¶

class GR(num_qubits, theta, phi)[Quellcode]¶

Bases: QuantumCircuit

Global R gate.

Circuit symbol:

     ┌──────────┐
q_0: ┤0         ├
     │          │
q_1: ┤1 GR(ϴ,φ) ├
     │          │
q_2: ┤2         ├
     └──────────┘

The global R gate is native to atomic systems (ion traps, cold neutrals). The global R can be applied to multiple qubits simultaneously.

In the one-qubit case, this is equivalent to an R(theta, phi) operation, and is thus reduced to the RGate. The global R gate is a direct sum of R operations on all individual qubits.

\[GR(\theta, \phi) = \exp(-i \sum_{i=1}^{n} (\cos(\phi)X_i + \sin(\phi)Y_i) \theta/2)\]

Expanded Circuit:

Create a new Global R (GR) gate.

Parameter

num_qubits (int) – number of qubits.
theta (float) – rotation angle about axis determined by phi
phi (float) – angle of rotation axis in xy-plane

Attributes

ancillas¶

Returns a list of ancilla bits in the order that the registers were added.

Rückgabetyp: List[AncillaQubit]

calibrations¶

Return calibration dictionary.

The custom pulse definition of a given gate is of the form: {‚gate_name‘: {(qubits, params): schedule}}

Rückgabetyp: dict

clbits¶

Returns a list of classical bits in the order that the registers were added.

Rückgabetyp: List[Clbit]

data¶

Return the circuit data (instructions and context).

Rückgabe: a list-like object containing the CircuitInstructions for each instruction.
Rückgabetyp: QuantumCircuitData

extension_lib = 'include "qelib1.inc";'¶

global_phase¶

Return the global phase of the circuit in radians.

Rückgabetyp: Union[ParameterExpression, float]

header = 'OPENQASM 2.0;'¶

instances = 87¶

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.

Rückgabetyp: dict

num_ancillas¶

Return the number of ancilla qubits.

Rückgabetyp: int

num_clbits¶

Return number of classical bits.

Rückgabetyp: int

num_parameters¶

Convenience function to get the number of parameter objects in the circuit.

Rückgabetyp: int

num_qubits¶

Return number of qubits.

Rückgabetyp: int

op_start_times¶

Return a list of operation start times.

This attribute is enabled once one of scheduling analysis passes runs on the quantum circuit.

Rückgabetyp: List[int]
Rückgabe: List of integers representing instruction start times. The index corresponds to the index of instruction in QuantumCircuit.data.
Verursacht: AttributeError – When circuit is not scheduled.

parameters¶

Convenience function to get the parameters defined in the parameter table.

Rückgabetyp: ParameterView

prefix = 'circuit'¶

qubits¶

Returns a list of quantum bits in the order that the registers were added.

Rückgabetyp: List[Qubit]