Inverse version of some two-qubit gates are not defined in default AerSimulator and QasmSimulator

[zywang12]

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Informations

• Qiskit Aer version: 0.15.0
• Python version: Python 3.12.4
• Operating system: Ubuntu 22.04.3 LTS

What is the current behavior?

When attempting to insert the inverse version of specific two-qubit gates (dcx, iswap, csx) into a circuit and transpile it using AerSimulator() or QasmSimulator(), the program raises a CircuitError.

File "/root/anaconda3/envs/qiskit_latest/lib/python3.12/site-packages/qiskit/transpiler/passes/optimization/consolidate_blocks.py", line 102, in run
    dag.substitute_node(block[0], UnitaryGate(block[0].op.to_matrix()))
                                              ^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/anaconda3/envs/qiskit_latest/lib/python3.12/site-packages/qiskit/circuit/gate.py", line 63, in to_matrix
    raise CircuitError(f"to_matrix not defined for this {type(self)}")
qiskit.circuit.exceptions.CircuitError: "to_matrix not defined for this <class 'qiskit.circuit.gate.Gate'>"

Steps to reproduce the problem

from qiskit.circuit import QuantumCircuit
from qiskit import transpile
from qiskit_aer import AerSimulator, QasmSimulator

qc = QuantumCircuit(2)
qc.dcx(0, 1)
# qc.iswap(0，1)
# qc.csx(0，1)
qc = qc.inverse()
qc.measure_all()
backend_sim = AerSimulator()
# backend_sim = QasmSimulator() # This backend throws the same error.
trans_qc = transpile(qc, backend=backend_sim, translation_method='synthesis')

What is the expected behavior?

The transpilation should complete without errors.

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