Nicolas Wittler

Interaction picture

1

## What Introduce interaction picture simulations. ## Why closes #213 ## How TBD ## Remarks This includes sizeable cleanup of the model based simulation code. ## Checklist Please include and...

## Describe the missing feature Support simulations in the interaction picture. ## Describe the solution you'd like Similar to selecting dressed/lab frame or open/closed system dynamics, allow for the selection...

## Describe the missing feature Frequency specified response function. ## Describe the solution you'd like Another response function device that is parametrized in frequency space (as opposed to the time-domain...

## Describe the missing feature Shapes and types of tensorflow variables needs to be consistent and correct across the whole codebase. ## Describe the solution you'd like The current workaround...

## Describe the bug Using https://github.com/q-optimize/c3/blob/2b4625ffe99fad1cf8b26e76300f50bfa8eb53a9/c3/utils/qt_utils.py#L68 the dimension of the target subspace is ignored. ## To Reproduce `hilbert_space_kron(PAULIS["Z"], 1, dims=[3, 3])` has dimension 6, because `PAULIS["Z"]` has dimension 2 and...

https://github.com/q-optimize/c3/blob/2b4625ffe99fad1cf8b26e76300f50bfa8eb53a9/c3/signal/gates.py#L106-L115 Looks like when `index` is not `None` this code has no effect, as the second statement reverses the first.

**Is your feature request related to a problem? Please describe.** Experiment design is a new type of optimization procedure. **Solution** Similar to literature, the class implements the procedure - [...

**Describe the bug** Gate identifiers consist of a (user specified) arbitrary name, e.g. `RX90p` and the index of the targeted qubit. Handling of this is inconsistent when simulating. **To Reproduce**...

Changing optimization solutions

2

**Describe the bug** The optimization in [examples/two_qubits.ipynb](https://github.com/q-optimize/c3/blob/dev/examples/two_qubits.ipynb) did not converge to high accuracy after 8e747d5fb23d7c78041ec3af8a6f5869df30efee **To Reproduce** Rerun the notebook. **Workaround** The issue is fixed by extending the search bounds...

**Is your feature request related to a problem? Please describe.** **Describe the solution you'd like** Previously parameters of both model and control components were managed in a `object.params` dictionary. This...