Round 2 verification audit for C084

Model: gpt-5

Claim: The optimal continuous convergence rate is R_t^opt = 6.1e-2 J at Omega_C = 1.95 J, kappa = 2.58 J, gamma = 0.29 pi.

Source alignment: source/supp_content.tex:274-274 (Supp. Mat. S6)

Prior official verdict: partial with failure_reason mismatch.

Executable evidence: run.py. Sandbox rerun logs: run.log.

Independent audit: I inspected the qutip continuous Liouvillian implementation against supp_content.tex S6. The Hamiltonian, four jump operators, beta=J setting, and gap extraction match the paper model. The script finds the paper-like optimum Omega_C=1.95J and kappa=2.58J but a full gap near 0.123J, about twice the printed 0.061J. C080 independently confirms the fidelity tail decays at the Liouvillian gap, supporting the mismatch.

Decision: Round 2 verdict is partial with failure_reason mismatch and limitations ['paper_text_only_reimplementation']. Notes: Numerical Liouvillian-gap optimization over (Omega_C,kappa,gamma), beta=J. Optimal PARAMETERS match the paper: Omega_C^opt=1.95J (paper 1.95J), kappa^opt=2.58J (paper 2.58J), gamma^opt=0.24pi (paper 0.29pi; gap broad in gamma). Optimal RATE: computed gap = 0.122-0.123 J, about 2x the paper's printed R_t^opt=6.1e-2 J. The factor of 2 is a rate-convention/typo issue: the paper's own J=0.58kHz->72Hz conversion (C085) requires R_t/J=0.124, i.e. the FULL gap 0.122 J, not 0.061 J. mismatch on the printed value; parameters and physics verified.