Hyper-optimized Quantum Lego Contraction Schedules
Balint Pato, June Vanlerberghe, and Kenneth R. Brown
Quantum 10, 2092 (2026). https://doi.org/10.22331/q-2026-05-05-2092 Calculating the quantum weight enumerator polynomial (WEP) is a valuable tool for characterizing quantum error-correcting (QEC) codes, but it is computationally hard for large or complex codes. The Quantum LEGO (QL) framework provides a tensor network approach for WEP calculation, in some cases offering superpolynomial speedups over brute-force methods, provided the code exhibits area law entanglement, that a good QL layout is u