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#### Issue description
when i use the lightning.qubit device i got the error below i already install `pennylane-lightning` latest version.
#### Source code and tracebacks
```python
import penny…
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### 🐛 Describe the bug
Hi!
The idea of the code below is to run a custom version of SchNet on SMILES representations of molecules. Code:
```python
print("Importing packages...")
import torch
i…
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# I find “Observable Projector not supported on device lightning.gpu”, but it's said to be supported in the stable version document.
### When I run the following codes, there will be no error.
```…
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#### Issue description
PennyLane Lightning encounters a "filesystem error" when tryi…
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The notebook tests in the CI seem to randomly fail every so often. Rerunning them seems to work. Any idea what's going on? Heres's a recent traceback:
```
[PosixPath('Adjoint.ipynb'), PosixPath(…
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### Expected behavior
The PL operator arithmetic allows for operators with imaginary/complex coefficients. If such expectation values of such operators are measured I expect to either get a imaginar…
cvjjm updated
1 month ago
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Our JSON QCSchema implementation is a bit outdated and incomplete, despite significant efforts to get this to work. (I appreciate all the hard work that has been done.)
The two main problems are:
…
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### Notebook
[Adapt-VQE](https://github.com/IBM-Quantum-Technical-Enablement/quantum-enablement/blob/main/docs/notebooks/adapt-vqe.ipynb)
### Outcome
Approval to publish
### Content description
T…
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### Expected behavior
Hi,
I have a simple example using "default.qubit" device and I would like to specify c_dtype to be {np.complex64, np.complex128}
### Actual behavior
I have 2 problems:
1.…
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Hello,
Is there any reason why I should expect a sign discrepancy between values in PySCF (2.6.2) and ORCA (6.0.0) of overlap integral of f+3 and f-3 functions (in def2-tzvp and/or def2-tzvpp basis…