Quantum Computing, Quantum Simulator, Quantum Algorithms.
typical stages which cannot be simulated and must be run on a real quantum computer or automated analysis: 44 qubits. Hopefully this can eventually be simulated as well. 48 qubits. Ditto. 50 qubits. Ditto. 52 qubits. Ditto. 55 qubits. Ditto. May be the limit for simulation for the next few years.