← All initiatives
Month 01 · Jun 2026Active

Quantum Circuit Simulator

qcsim

The first Community Build Initiative. Built by the community, for the community. A working reference implementation ships on day one; contributors extend it at every level, from adding quantum gates to wiring up real hardware backends.

View repository

— Reference implementation ships with —

  • State vector simulator — up to 20 qubits
  • Interactive terminal circuit builder (arrow-key navigation)
  • Python API with method chaining
  • Kronecker + Tensor simulation backends
  • 52 passing tests
  • Community circuit library with SHA-256 deduplication