David Ittah

Add Q# with C# host program template

1

**Is your feature request related to a problem? Please describe.** Currently need to generate the Q# library and host program separately, from the command line, and then add the library...

QIR Runtime: LLVM version discrepancy

3

## Describe the bug The [QIR Runtime readme](https://github.com/microsoft/qsharp-runtime/tree/main/src/Qir/Runtime#the-native-qir-runtime) lists the required LLVM version as `11.0.0`, while the [prereq installation script](https://github.com/microsoft/qsharp-runtime/blob/main/src/Qir/Runtime/prerequisites.ps1) uses version `11.1.0`.

### Expected behavior The `name` attribute of the measure operation found in the `tape.operations` list should be set correctly (e.g. `measure`). ### Actual behavior Instead the `name` attribute contains `Identity`....

Caching inside GitHub's built-in container support for jobs

1

Is there a way to make this action work with GitHub's built-in container support for jobs? For example the step below results in a cache miss, whereas it would produce...

Fix gradient transform output shape for 2D QNode outputs

3

Fixes a bug in `qml.gradients.param_shift` that transposes the QNode output dimensions in the returned tensor: https://github.com/PennyLaneAI/pennylane/blob/e1b15d27cc5a4a882b552c936580dd903fe3b988/pennylane/gradients/parameter_shift.py#L277 The following example demonstrates the issue: ```py dev = qml.device('default.qubit', wires=4) @qml.qnode(dev) def circuit(params):...

[Bug] Updated activity analysis produces incorrect derivative

1

### Issue description This is a follow-up on #1608. The issue described there is about [recent changes](https://github.com/EnzymeAD/Enzyme/pull/1558) to the activity analysis that introduce incorrect derivative results in very specific input...

Xanadu's MLIR compiler for hybrid quantum computing.

Is there a pass (sequence) that can lower the `mhlo.scatter` operation to standard MLIR dialects, such as `linalg` or `tensor`? The goal is to lower to the LLVM dialect and...

[RFC] Improve handling of nested control structures

5

Looking for feedback on the following: After merging #599, Lightning obtained support for the `BlockEncode` operator. However, even though Lightning in principle supports arbitrary control wires on all supported operators,...

# Abstract Build an optimization layer in Terra based on Hoare logic. This uses post- and triviality conditions on gates and state assertions to infer information about the qubit state...