unitaryHACK 2026 has come to a close.

🅿️🅿️ PauliPropagation.jl

PauliPropagation.jl is a flexible, high-performance library for simulating large-scale quantum circuits.
Pauli propagation is a new numerical technique popularized by simulating IBM's utility experiment on 127 qubits. Theoretically, it has been shown that it is provably efficient for simulating certain near-Clifford, random, or noisy quantum circuits. In practice, however, it performs far better than its theoretical guarantees when implemented well. Using optimized bitwise operations, pre-allocated data structures, and parallelization, PauliPropagation.jl can yield approximate simulation results for quantum circuits that are beyond the reach of exact verification.
Join our efforts, contribute to PauliPropagation.jl, and show what this simulation method is capable of!

Office hours

  • Date Friday, June 5, 2026
    Time 10:00am ET
    Maintainer Manuel Rudolph
Closed bounties: