About
OpenJij is an open-source heuristic optimization library for the Ising model and QUBO, developed by Jij Inc., a Japanese startup. It is led by Chief Engineer and CTO Kohji Nishimura, a faculty member of the Nishimori lab at the Tokyo Institute of Technology, and its goal is a unified annealing platform. The library provides a high-speed simulated annealing solver for QUBO and Ising models, with a Python interface that makes it easy to combine with other optimization tools. It supports both simulated annealing and simulated quantum annealing, which helps research into quantum computing technologies. OpenJij is fully open source under the Apache License Version 2.0, is actively maintained on GitHub, and continued to be used in advanced quantum computing research in 2024. Jij Inc. brings together experts in mathematical optimization and quantum technology, serving the energy value chain and a wide range of industries worldwide.
Quantum Specifications
| Quantum Focus | hardware |