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## Summary
The idea is to allow common simple 1 and 2 qubit circuits to be built with a string passed to `Qunitary`. This would allow a for an elegant interaction to build complicated circuits from s…
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#### Issue description
It is not possible to evaluate various expectation values sim…
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### Expected behavior
```
>>> qml.pow(qml.PauliX(0), 1).expand().circuit
[PauliX(wires=[0])]
```
### Actual behavior
```
>>> qml.pow(qml.PauliX(0), 1).expand().circuit
[]
```
### Add…
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### Expected behavior
Running
```python
qml.enable_return()
dev = qml.device("default.qubit", wires=2)
@qml.qnode(dev)
def circuit(weights):
qml.RX(weights[0, 0, 0], wires=0)
qml.R…
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### Expected behavior
Receive the electron integrals of the molecule
### Actual behavior
IndexError: list index out of range
### Additional information
In qml.qchem module, there are many metho…
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### Feature details
Adding `argnums` to transforms allows us to compute quantities in the forward pass while in an autodiff framework.
Similar to `qml.grad` or `qml.classical_jacobian`, it should be…
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### Expected behavior
The first docstring example suggests that it should return `True`.
### Actual behavior
It returns `False`.
### Additional information
_No response_
### Source code
```shel…
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### Describe the workflow you want to enable
I have designed a quantum kernel function with Pennylane quantum simulator. When i want to use Gaussian process for classification in combination with t…
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#### Inconsistent hyperlinks for the "back" button in (at least) QML demos
The back button at the top left of the demo page has different hyperlinks for different demos in the qml list.
![imag…
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### Expected behavior
The attached code should return the probabilities of all the wires.
### Actual behavior
The following error is raised:
```pycon
ValueError: cannot reshape array of siz…