AncillaQubit

class AncillaQubit(register=None, index=None)

Bases: Qubit

A qubit used as ancillary qubit.

Creates a qubit.

Parâmetros

• register (QuantumRegister) – Optional. A quantum register containing the bit.

• index (int) – Optional. The index of the bit in its containing register.

Levanta

CircuitError – if the provided register is not a valid QuantumRegister

Attributes

index

Get the index of an old-style bit in the register that owns it.

Obsoleto desde a versão 0.17: Use QuantumCircuit.find_bit() instead.

In modern Qiskit Terra (version 0.17+), bits are the fundamental object and registers are aliases to collections of bits. A bit can be in many registers depending on the circuit, so a single containing register is no longer a property of a bit. It is an error to access this attribute on bits that were not constructed as «owned» by a register.

register

Get the register of an old-style bit.

Obsoleto desde a versão 0.17: Use QuantumCircuit.find_bit() instead.

In modern Qiskit Terra (version 0.17+), bits are the fundamental object and registers are aliases to collections of bits. A bit can be in many registers depending on the circuit, so a single containing register is no longer a property of a bit. It is an error to access this attribute on bits that were not constructed as «owned» by a register.