qrisp.QuantumCircuit.append#

QuantumCircuit.append(operation_or_instruction, qubits=[], clbits=[])[source]#

Method for appending Operation or Instruction objects to the QuantumCircuit.

The parameter qubits can be an integer, a list of integers, a Qubit object or a list of Qubit objects. The same is valid for the clbit parameter.

If given an Instruction object instead of an Operation, the given qubit and clbit parameters are ignored.

Parameters:

operation_or_instructionOperation or Instruction: The operation or instruction to be appended to the QuantumCircuit.
qubitsinteger, list[integer], Qubit, list[Qubit], optional: The qubits on which to apply the operation. The default is [].
clbitsinteger, list[integer], Clbit, list[Clbit], optional: The classical bits on which to apply the operation. The default is [].

Examples

We create a \(H^{\otimes 4}\) gate and append it to every second qubit of another QuantumCircuit:

>>> from qrisp import QuantumCircuit
>>> multi_h_qc = QuantumCircuit(4, name = "multi h")
>>> multi_h_qc.h(range(4))
>>> multi_h = multi_h_qc.to_gate()
>>> qc = QuantumCircuit(8)
>>> qc.append(multi_h, [2*i for i in range(4)])
>>> print(qc)

       ┌──────────┐
 qb_4: ┤0         ├
       │          │
 qb_5: ┤          ├
       │          │
 qb_6: ┤1         ├
       │          │
 qb_7: ┤  multi h ├
       │          │
 qb_8: ┤2         ├
       │          │
 qb_9: ┤          ├
       │          │
qb_10: ┤3         ├
       └──────────┘
qb_11: ────────────