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From the [spec](https://openqasm.com/language/classical.html#if-else-statements):
```
The statement if ( bool ) branches to program if the Boolean evaluates to true
and may optionally be followed …
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Hi everyone,
I'm new to ProjectQ and I'm looking for guidance on resetting qubits. I understand that the reset gate available in Qiskit isn't directly available in ProjectQ. Could anyone suggest an…
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Now that we have tags, adding additional identity operations that might be useful for expressiveness:
`II` a two qubit identity gate would be useful for cases where we would like stim to check the …
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I was looking at `PauliPreparationBasis` for `ProcessTomography`. However, it is unclear to me how those bases will eventually be used to construct the channel matrix elements (i.e. for arbitrary basi…
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## Important Note
⚠️ This issue is part of an internal assignment and not meant for external contributors
## Context
[Lightning-Qubit](https://github.com/PennyLaneAI/pennylane-lightning/) is …
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### What is happening?
Creating an operator from RZGate controlled by 10 qubits raises ValueError.
### How can we reproduce the issue?
```python
from qiskit import QuantumCircuit, QuantumRegis…
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### Environment
- **Qiskit version**: 1.2.4
- **Python version**: 3.12
- **Operating system**: macOS Sequoia 15.0.1
### What is happening?
Can't append a multi-control gate using `append` because b…
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### Required prerequisites
- [x] Consult the [security policy](https://github.com/NVIDIA/cuda-quantum/security/policy). If reporting a security vulnerability, do not report the bug using this form. U…
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### Expected behavior
The following code
```
dev1 = qml.device("lightning.qubit", wires=1)
@qml.qnode(dev1)
def circuit2(phi1, phi2):
qml.RX(phi1, wires=0)
qml.RY(phi2, wires=0)
…
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### Informations
- **Qiskit Aer version**: 0.15.1
- **Python version**:
- **Operating system**:
### What is the current behavior?
AerEstimatorV2 gives memory error when trying to execute small ci…