POVM Toolbox: 0.2.0

What's Changed

• fix: the code publishing workflow by @mrossinek in #74
• ci: set up mergify by @mrossinek in #77
• Minor release cleanup by @mrossinek in #76
• Post-process the 0.1 release by @mrossinek in #80
• ci: automatically publish docs on tag creation by @mrossinek in #81
• meta: add a package description by @mrossinek in #85
• Bug fix by @timmintam in #87
• fix: handle ZeroDivisionError during post-processing by @mrossinek in #90
• Fix small typos and update explanantions by @timmintam in #88
• Allow for non-IC frames by @timmintam in #94
• Remove usage of qiskit-aer by @timmintam in #96
• Set default dpi for figure of draw_bloch method by @timmintam in #99
• Fix seed in StatevectorSampler by @timmintam in #98
• Make `MultiQubitFrame.operators' attribute read-only by @timmintam in #102
• Feat: add a method to easily access the state "snapshots" by @timmintam in #100
• Introduce an optional virtual shape for MultiQubitFrame objects by @timmintam in #101
• Fix CI by @mrossinek in #108
• Clarify order of measurements for locally-biased classical shadows by @timmintam in #107
• Update meta files by @mrossinek in #111
• Update linters by @mrossinek in #115
• docs: add missing logos by @mrossinek in #116
• Support Qiskit 2.0 by @mrossinek in #118
• fix: the setup of the QiskitRuntimeService in CI by @mrossinek in #121
• fix: properly skip action secret-dependent test by @mrossinek in #123
• build(deps): bump ruff from 0.11.1 to 0.11.8 by @dependabot in #120
• Update license specification inline with PEP 639 by @mrossinek in #125
• Update intersphinx mapping and other URLs pointing to IQP Classic by @arnaucasau in #126
• build(deps): bump pylint from 3.3.6 to 3.3.7 by @dependabot in #127
• build(deps): bump ruff from 0.11.8 to 0.11.12 by @dependabot in #128
• build(deps): bump mypy from 1.15.0 to 1.16.0 by @dependabot in #129
• Allow array-like arguments by @timmintam in #131
• Migrate from np.array to np.asarray by @timmintam in #130
• Combine counters by @timmintam in #103
• Replace unittest with pytest by @mrossinek in #133
• De-duplicate some unittest logic by @mrossinek in #135
• ci: enforce 100% unittest coverage by @mrossinek in #136
• Release 0.2 by @mrossinek in #138

New Contributors

• @dependabot made their first contribution in #120
• @arnaucasau made their first contribution in #126

Full Changelog: 0.1.0...0.2.0

0.1.2

Bug Fixes

• When shots=1, the POVMPostProcessor.get_expectation_value() would fail with a ZeroDivisionError. This case is now handled gracefully by returning float("NaN") for the standard deviation.

• Fixes a bug in the ProductFrame.analysis() method occurring for MultiQubitFrame instances with num_qubits>2. This bug affected the outcome of other methods such as BasePOVM.get_prob() and BaseDual.get_omegas().

0.1.1 - Settling into PyPI

Minor documentation updates to ensure PyPI releases are presented properly.

The initial release

This is a toolbox for working with positive operator-valued measures (POVMs).
It enables users to use POVMs for sampling the state of quantum circuits (see
also povm_toolbox.sampler) and compute expectation values of any observable of
interest (see also povm_toolbox.post_processor).
The toolbox includes a library of pre-defined POVMs (see povm_toolbox.library)
which provide ready-to-go POVM circuit definitions. You can also implement your
own POVM circuits by following the provided interface.
Additionally, you can work with POVMs on a quantum-informational theoretical
footing (see povm_toolbox.quantum_info).

Starting with this release, this project will follow semantic versioning.