30249255093
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Ran 27 Jul 2026 08:27AM UTC

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Committed 27 Jul 2026 08:16AM UTC coverage: 97.983%. Remained the same

Build # 30249255093

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push

github

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web-flow

Commit Message

docs(guides): expand the LUCJ guide with compressed DF and transpilation (#213)

Add two end-to-end sections to the LUCJ guide and modernize its style:

- Compressed double factorization (closes #191): a runnable subsection showing
  how to build the ansatz from ffsim's optimized ("compressed")
  from_t_amplitudes(..., optimize=True) by handing its diag_coulomb_mats /
  orbital_rotations / final_orbital_rotation straight to the UCJ constructor,
  and evaluating its energy.

- Transpilation: a section that first lowers the ansatz to qubits with the
  vanilla Jordan-Wigner preset (drawing the resulting circuit), then targets a
  restricted hardware coupling map by slotting ffsim's
  generate_lucj_pass_manager into the preset's qubit stage. It highlights the
  LUCJ co-design payoff: feeding the pass manager's hardware-filtered
  allowed_pairs_ab back into the ansatz (via UCJ.from_t_amplitudes'
  interaction_pairs) collapses the routed circuit from many SWAPs to a handful,
  drawn back in the original mode order via a wire_order taken from the
  transpiled circuit's final layout.

Also drop the (empty) C code tabs in favor of the plain-plot style used by the
merge_slater_determinant guide, and link the first ffsim mention to its docs.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

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ID	Job ID	Ran	Files	Coverage
1	30249255093.1	27 Jul 2026 08:27AM UTC	91	97.98	GitHub Action Run

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