Albert Mitjans

Set is_sampled to True when using Counts return type

3

Now when using `qml.counts` with `shots=None` we get the following error: ```python dev = qml.device("default.qubit", wires=1) @qml.node(dev) def circuit(): return qml.counts() ``` ``` pennylane.QuantumFunctionError: The number of shots has to...

Use random tests

3

Add [pytest-randomly](https://pypi.org/project/pytest-randomly/1.2.3/) to requirements. This plugin randomly shuffles the order of test items. This is done first at the level of modules, then at the level of test classes and...

Run linting only on changed files

3

- Run `black` and `pylint` only on the files that are A (Added), C (Copied), M (Modified), R (Renamed), T (Changed), U (Unmerged), X (Unknown) and B (Broken pairing). See...

### Feature details Operators that have `num_wires = AnyWires` or `num_wires = AllWires` (such as `qml.Barrier`) are applied to all wires when instantiated with `wires = []`. This is the...

### Feature details Support the comparison of nested operators using the `qml.equal` method. ### Implementation _No response_ ### How important would you say this feature is? 1: Not important. Would...

Improve expand_matrix method

5

Change matrix expansion method, which improves performance. The current method does the following: - Computes the `kron` product of `Identity` operators together with the given `base_matrix`, following the wire order...

Identity accepts multiple wires.

16

The `qml.Identity` class can now be instantiated with multiple wires: ```pycon >>> id_op = qml.Identity([0, 1]) >>> id_op.matrix() array([[1., 0., 0., 0.], [0., 1., 0., 0.], [0., 0., 1., 0.],...

Compute matrix of only the operators that act on overlapping wires

6

- Add `overlapping_ops` property to the `Composite` class. - Improve performance of `eigvals`, `diagonalizing_gates` and `Prod.matrix` methods using the aforementioned property. - Move `eigvals` method to the `Composite` class. To...

Support qml.equal with op. arithmetic

3

1. Compare the `op.hash` when using `qml.equal` with operator arithmetic. 2. Take into account the `op.name` when sorting summands. 3. Add `op.hash` to some arithmetic operators. 4. Use `qml.equal` in...