Figure 5
From: Multi-bit quantum random number generation from a single qubit quantum walk
Randomness with number of steps in standard DTQW in presence of bit flip noise in coin space. With increase in noise some decrease in randomness is seen. The randomness in system with noise will have contribution from both, quantum origin as well as noise. To show that we have plotted randomness (R) for noiseless evolution and for evolution with different noise level p. The van Neumann entropy (E) and the randomness of quantum origin is also shown. Though overall randomness does not see a significant decrease, a substantial decrease in randomness from quantum origin is seen.
