Yulun Wang

[4.1.1] HHL doesn't give the right answer

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## Describe the Issue Hi I am using HHL function in Aqua. Here are two examples I tested:  For the second example, HHL failed giving me correct answer. It...

### Team Name: BladeRunner ### Project Description: One of the most challenging and important tasks in chemistry is finding the stable geometry of molecules. Classically the problem is computationally intensive....

### Environment - **Qiskit version**: 0.46.0 - **Python version**: 3.10 - **Operating system**: MacOS ### What is happening? When using `dag.swap_nodes()` on two 2-qubit operations that share the same qargs,...

Compilation moves measurement position if there is no end-circuit barrier

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If there is no end-circuit barrier, the end circuit measurement will be moved by compiler. For instance, the measurement on q1 will be moved to mid-circuit position of q2. In...

Supporting time-dependent Hamiltonian for time-evolution

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### Feature details Hi all, I am trying to use Pennylane to solve time evolution problems, where the Hamiltonian is time-dependent. With the `ApproxTimeEvolution(H, t, n)` method, I am able...

Specify the edge when applying remove_edge

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### What is the expected enhancement? Currently the method `rustworkx.PyGraph.remove_edge` is only taking `parent` and `child` as input: `def remove_edge(self, parent: int, child: int, /) -> None: ...` In the...