Circuit with parametrized delay gate doesn't execute on backend #12974
Description
Environment
- Qiskit version: 1.1.2
- Python version: 3.10.7
- Operating system: Windows 11
What is happening?
A simple circuit with 1 delay gate on single qbit on ibm_brisbane backend when executed gives Internal error 1500. Similar issue poped up (#11010), but this solution doesn't work.
How can we reproduce the issue?
from qiskit.quantum_info import Pauli
import numpy as np
from qiskit import QuantumCircuit
from qiskit.circuit import Parameter
from qiskit_ibm_runtime import EstimatorV2 as Estimator
from qiskit_ibm_runtime import QiskitRuntimeService
from qiskit.transpiler.preset_passmanagers import generate_preset_pass_manager
backend_name = "ibm_brisbane"
qbit_num = 28
t_vals = np.linspace(0,100,20)
t = Parameter("time")
observables = Pauli("X")
circuit = QuantumCircuit(1)
circuit.delay(t,0,unit="us")
backend = QiskitRuntimeService().backend(name=backend_name)
pass_manager = generate_preset_pass_manager(1,backend=backend,initial_layout=[qbit_num])
pass_manager.scheduling = None
echo_transpiled = pass_manager.run(circuits=circuit)
observables_transpiled = observables.apply_layout(echo_transpiled.layout)
pub = (echo_transpiled,observables_transpiled,t_vals)
estimator = Estimator(mode=backend)
job = estimator.run([pub])
What should happen?
Circuit should be executed on ibm_brisbane backend
Any suggestions?
No response