40201457226
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Ran 25 Oct 2026 02:21PM UTC

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Files 124

Run time 1min

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Committed 25 Oct 2026 02:16PM UTC coverage: 98.222%. Remained the same

Build # 40201457226

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push

github

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web-flow

Commit Message

test(circuit): antisymmetrize same-spin t2 blocks for new ffsim (#398)

Recent ffsim releases validate the same-spin `t2_aa` and `t2_bb` blocks
when an unrestricted UCCSD operator is constructed: they must be
antisymmetric in the occupied and in the virtual indices. Our test
helpers only imposed the simultaneous-exchange symmetry
`t2[i, j, a, b] == t2[j, i, b, a]`, which that check rejects, so the
unrestricted UCC tests failed in the nightly run.

Antisymmetric blocks also carry the exchange symmetry, which is all the
UCC gate sees, so the helpers stay valid for older ffsim versions and
the minimum supported version does not change. The shared
`antisymmetrized_t2` helper lives in `tests/python/utils.py`.

Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>

Coverage Stats

14031 of 14285 relevant lines covered (98.22%)

457552.32 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	40201457226.1	25 Oct 2026 02:21PM UTC	124	98.22	GitHub Action Run

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