Andrea Mari

Extend mitq.shadows beyond Cirq circuits

1

## Issue Description The code of `mitiq.shadows` is now implemented but it just works with Cirq circuits. We need to extend it to all Mitiq-compatible frontends. ## Proposed Solution Use...

ZNE test failing non-deterministically

1

The `test_with_observable_batched_factory` test is quite old but, for some reason, it seems to fail more often in the last weeks. See e.g.: https://github.com/unitaryfund/mitiq/actions/runs/5423886272/jobs/9862463130#step:5:3881 I would suggest to have a look...

Support `observable=None` in Quantum Subspace Expansion (QSE)

7

This is an optional improvement to QSE: - support `observabe=None` by appending Paulis to circuits instead of absorbing them into the `Observable` object. This is useful to apply QSE when...

## Issue Description We currently have an `ideal_executor` argument in the calibrator which represents a classical simulator of a perfect quantum computer. In practice however it is not used. It...

## Description Given a shot budget of $N_{\text{tot}}$ measurements, it would be nice to distribute them in different quantities for different scale factors in ZNE. The optimal choice is the...