Error detection and correction

Physics

Quantum error correction

Noise (video)

Algorithm

Image (mathematics)

Computer engineering

Artificial intelligence

Computer science

Quantum computer

Quantum mechanics

Quantum

Physical Review Letters

Variational algorithms may enable classically intractable simulations on near-future quantum computers. However, their potential is limited by hardware errors. It is therefore crucial to develop efficient ways to mitigate these errors. Here, we propose a stabilizerlike method which enables the detection of up to 60%-80% of depolarizing errors. Our method is suitable for near-term quantum hardware. Simulations show that our method can significantly benefit calculations subject to both stochastic and correlated noise, especially when combined with existing error mitigation techniques.

Error-Mitigated Digital Quantum Simulation