LiH_ccpvdz_JW_UCCSD_v4_tapered__sha256_21e143f12ed3a4b6
VQE Gap
2.8628e-6 Ha
CASCI ref
-7.983773 Ha
Qubits (tapered)
5
CCSD(T) corr.
-3.110e-2 Ha
T-gate count is the resource-relevant cost of a fault-tolerant implementation. It is an estimate from the non-Clifford rotations in the pre-transpilation circuit, assuming standard rotation synthesis to precision ε — not a compiled count for a specific device.
Note on UCCSD circuit metrics
UCCSD uses exponential Pauli operators (exp(iθH)) that are symbolic before compilation. Circuit depth and 2-qubit gate counts are not reported here — they depend on the target hardware and transpiler.
# Clone repo and install pinned environment
git clone https://github.com/qencode-benchmark/qencode-benchmark
cd qencode-benchmark
pip install -r requirements-v4.txt
# Run this entry
python scripts/generate_entry_v4.py \
--molecule LiH \
--mapping jordan_wigner \
--ansatz-type uccsd \
--multistart 1 \
--max-iter 500 \
--out-dir releases/v4/db
