Random number generation improvements

Minor improvements have been made to Qrack's random number generator API. Most importantly, 32 divisions have been replaced with 32 multiplications when generating a random float with Rand(). Another possible point of improvement is that most-significant bit of the raw random bit stream now corresponds with most-significant bit of Rand(), where some devices and services for random number generation will tend to prioritize most-significant bit as slightly less biased for randomness than least-significant.

Full Changelog: unitaryfund/qrack@vm6502q.v9.9.8...vm6502q.v9.9.9

sha1sum results:
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834cd6595105ceda7adcd09a2b47ae0af51c0a21 pennylane_qrack-0.8.2.tar.gz

State vector observable (2)

The previous release was yanked from PyPi due to problems running the tutorial locally. The issue turned out to be with the local installation of Catalyst, but not the plugin. This is a re-release of v0.8.0, plus the new QUnit refactoring release in Qrack.

sha1sum results:
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fdd9509024e38a169f0206808e1deeb9e6425a51 pennylane_qrack-0.8.1.tar.gz

Full Changelog: v0.8.0...v0.8.1

State vector observable

By mistake, state vector outputs were omitted from the *.toml, even though the implementation would support them. This release simply updates the *.toml to enable state vector outputs.

What's Changed

• Added state to the list of supported measurements in device config. by @mehrdad2m in #22
• Fix tutorial thumbnail image in docs by @josh146 in #21

New Contributors

• @mehrdad2m made their first contribution in #22
• @josh146 made their first contribution in #21

Full Changelog: v0.7.3...v0.8.0

sha1sum results:
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40f24a08385fa69de2bb4f92267b6d5735c8c58a pennylane_qrack-0.8.0.tar.gz

Debug multi-GPU Clifford+RZ environment variable

This release fixes a bug that prevented custom tuning of the maximum ancillary qubit count in QStabilizerHybrid via QRACK_MAX_PAGING_QB. (This mostly affects cases of multi-GPU simulation with near-Clifford optimization, only.)

Full Changelog: v0.7.2...v0.7.3

NOTE: This release has been updated, only because it was originally packaged incorrectly as v0.7.2 instead of v0.7.3. The hashes have changed, as a result.

sha1sum results:
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003e5502a6ef1d0a371bbc7e247c7735627bfdc4 pennylane_qrack-0.7.3.tar.gz

Fix expectation values for PyQrack (non-QJIT) back end

What's Changed

• 'rotations' parameter is redundant if Qrack converts to observable basis by @WrathfulSpatula in #20

Full Changelog: v0.7.1...v0.7.2

sha1sum results:
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ed129546dabd678fac4dc09cd03dfddb7707ab72 pennylane_qrack-0.7.2.tar.gz

Debug qubit reallocation

This release (solely) fixes a bug where the Qrack device does not correctly re-allocate after qubits are first released. This previously could have impacted situations where a QJIT subroutine was called twice, using the same original Qrack device, and such situations would have raised exception for bad qubit access.

What's Changed

• Fix reallocation after free by @WrathfulSpatula in #19

Full Changelog: v0.7.0...v0.7.1

sha1sum results:
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Basic noisy simulation

This adds a simulation layer with support for a very basic noise model: every gate applies single-qubit depolarizing noise on each qubit involved, respectively, based upon a noise parameter that can be set in code or by environment variable (QRACK_GATE_DEPOLARIZATION), between each single gate.

sha1sum results:
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ed1329c7eb45ebc81420dd6cb4e48c2b20aa4879 pennylane_qrack-0.7.0-py3-none-macosx_13_0_x86_64.whl
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05a6649acfe473dc80a7c8cd815ccffe5335d770 pennylane_qrack-0.7.0.tar.gz

Packaging improvements

This release fixes several issues with packaging:

• Removes unintentional inclusion of shared library artifact in source distribution
• README documentation is brought up-to-date, regarding installation
• Should automatically link against the official ("deprecated") OpenCL framework available on Mac, only if the processor is x86_64
• Explicitly pins Catalyst and Qrack versions, for reproducible and stable builds

sha1sum results:
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07a925bbec4e53e5bf5ca384924b4ebfed624bd2 pennylane_qrack-0.6.16.tar.gz

Universal source build

This release eliminates the need to install scikit-build before installing this plugin from PyPi. Instead of scikit-build, setuptools is used to build source releases on systems without support from the supplied wheels. (Please file bug reports if any source builds fail to support your system, and the Qrack team will work through debugging your build!)

sha1sum results:
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6360ae5f15f15fcf6ea08b3ac6ae9a6a38b52b23 pennylane_qrack-0.6.15.tar.gz

Packaging details

This release settles some fine details of packaging. Windows and Mac builds also now look for the correct respective object files for Catalyst support.

sha1sum results:
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