🐛 [NA] Dropped Global Hadamard Gate

[ystade]

System and Environment Information

MAC OS 15.6.1
MQT QMAP 3.4.0dev@9c84575

Bug Description

When compiling a circuit with a global Hadamard Gate, this is dropped and does not exist in the resulting output.

Steps to Reproduce

Run the following contract:

from qiskit import QuantumCircuit
from mqt.core import load

def global_h(num_qubits):
    """:returns: a global ry gate"""
    qc = QuantumCircuit(num_qubits)
    qc.h(range(num_qubits))
    return qc.to_gate(label="H")

qc = QuantumCircuit(5)
qc.append(global_h(5), range(5))
qc.draw(output="mpl")

circ = load(qc)
print(circ)

Got naviz:

atom (20.000, 9.000) atom0
atom (25.000, 9.000) atom1
atom (30.000, 9.000) atom2
atom (35.000, 9.000) atom3
atom (40.000, 9.000) atom4