Figure 13

This figure illustrates the measurement results in the form of plot histogram to verify that any given ciphertext state is a superposition of four states. The results are illustrated for some randomly chosen Permutation Operator P. The circuit was executed on the IBM Manila Quantum computer 20,000 times. (a) Plot histogram of measurement results of the state \(|\phi \rangle = P(\hat{H}|00\rangle )\). (b) Plot histogram of measurement results of the state \(|\phi \rangle = P(\hat{H}|01\rangle )\). (c) Plot histogram of measurement results of the state \(|\phi \rangle = P(\hat{H}|10\rangle )\). (d) Plot histogram of measurement results of the state \(|\phi \rangle = P(\hat{H}|11\rangle )\)