Update stateprep decomposition in tutorial_how_to_quantum_just_in_time_compile_vqe_catalyst demo #1325
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Providing `gradient_kwargs` as additional `kwargs` to `QNode` is deprecated as of: PennyLaneAI/pennylane#6828. [sc-81531]
**Title:** Adjust interface of `ControlledQubitUnitary` to be compatible with PennyLane v0.41 **Summary:** changed 5 occurences in demonstrations/tutorial_classically_boosted_vqe.py and demonstrations/tutorial_testing_symmetry.py **Related Shortcut Stories:** [sc-80842] --------- Co-authored-by: Alex Preciado <[email protected]>
**Context:** In PennyLaneAI/pennylane#6939, a fix was made to `qml.expval` so that it no longer silently converts the result to a real number. However, in `tutorial_pulse_programming101.py` we use a Hamiltonian with complex-typed coefficients. This resulted in an imaginary expectation value (`X+0j`) and broke the `jax.value_and_grad` function. **Description of change:** Wrap the `qnode` function to get the expectation value and convert it to a real number. This allows `jax.value_and_grad` to be used and fixes the demo.
…egacy interfaces (#1284) **Title:** Update `tutorial_noisy_circuits.py` to port `default.mixed` free of legacy interfaces **Summary:** In the Tutorial of Noisy Circuits, there's a call `dev.state` which is a legacy-only interface. In our current standard, the device object will not store the state any more and we should return the latest state via the corresponding measure. **Relevant references:** **Possible Drawbacks:** **Related GitHub Issues:** ---- --------- Co-authored-by: Andrija Paurevic <[email protected]> Co-authored-by: Isaac De Vlugt <[email protected]>
… happen automatically when in a gradient method.
mehrdad2m
commented
Mar 12, 2025
demonstrations/tutorial_how_to_quantum_just_in_time_compile_vqe_catalyst.metadata.json
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**Title:** `scipy` used in qml has been very old. Upgrade `scipy` version to 1.12 **Summary:** `scipy`: 1.11.4 -> 1.12.0 `mitiq`: 0.32 -> 0.43 `qutip`: 4.7.3 -> 5.1.0 **Relevant references:** **Possible Drawbacks:** **Related GitHub Issues:** [sc-86308]
Fixing some deprecation warnings
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Title:
Update tutorial_how_to_quantum_just_in_time_compile_vqe_catalyst demo.
Summary:
Update a demo to reflect changes in this PR.
Remove compute_decomposition for the state prep instruction as it will happen automatically when in a gradient method.
Relevant references:
Possible Drawbacks:
Related GitHub Issues: