NISQ
Noisy Intermediate-Scale Quantum computing, the current era of quantum hardware characterized by limited qubits and high error rates.
NISQ (Noisy Intermediate-Scale Quantum) describes the current generation of quantum computers, coined by John Preskill in 2018. These systems have tens to hundreds of qubits but suffer from noise and decoherence that limits circuit depth. NISQ devices cannot run the error-corrected algorithms that would provide clear advantages over classical computers, but may demonstrate quantum advantage on specially designed problems. The NISQ era is expected to continue until fault-tolerant quantum computers with thousands of logical qubits become available.
Also known as
Noisy Intermediate-Scale Quantum, NISQ era, NISQ computing