Fix Qiskit Aer deprecation warnings #322
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Replace deprecated Aer.get_backend() calls with AerSimulator():
- test/measurement/test_measure.py: Use AerSimulator() instead of
Aer.get_backend("aer_simulator")
- test/layers/test_rotgate.py: Use AerSimulator(method='unitary')
instead of Aer.get_backend("unitary_simulator")
- examples/quest/utils/fide_pst.py: Update imports and use
AerSimulator() directly
The Aer.get_backend() API was deprecated in qiskit-aer 0.12 and
AerSimulator is the recommended replacement.
Fixes mit-han-lab#193
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <[email protected]>
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Summary
Replace deprecated
Aer.get_backend()calls withAerSimulator()in test files and examples.Changes
test/measurement/test_measure.py: UseAerSimulator()instead ofAer.get_backend("aer_simulator")test/layers/test_rotgate.py: UseAerSimulator(method='unitary')instead ofAer.get_backend("unitary_simulator")examples/quest/utils/fide_pst.py: Update imports and useAerSimulator()directlyBackground
The
Aer.get_backend()API was deprecated in qiskit-aer 0.12.AerSimulatoris the recommended replacement:Note
The VQE example (
examples/qiskit/vqe.py) also uses deprecated APIs but requires a more comprehensive refactor to update fromQuantumInstanceto the new Primitives API. That change is out of scope for this PR.Test plan
Fixes #193
🤖 Generated with Claude Code