Refining the Impact of Quantum Noise: From Chaotic Effects to Contribution in Randomness Generation

Quantum noise, typically considered an obstacle in quantum computing, provides novel prospects in random number generation. This research investigates the possibility of several forms of quantum noise as significant resources for producing high-quality randomness. The study employed simulations of random quantum circuits to examine the effects of bit-flips, phase-flips, and depolarizing noise at different intensities. We conducted the simulations in a controlled setting using the Qiskit Aer simulator, which we selected for its ability to accurately mimic noise effects and replicate the behaviour of actual quantum gear. The research indicated that bit-flip and depolarizing noise consistently produced more significant amounts of unpredictability than phase-flip and noiseless circuits. Applying the produced binary sequences to the NIST Statistical Test Suite corroborated the discovery, confirming their superior quality and appropriateness for applications requiring random numbers. The study suggests that we can efficiently use quantum noise to create safe randomness, which offers significant benefits for encryption, simulations, and other domains that demand genuine unpredictability.