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Figure 12 | EPJ Quantum Technology

Figure 12

From: Quantum encryption of superposition states with quantum permutation pad in IBM quantum computers

Figure 12

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 Qasm simulator 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 \(|\phi \rangle = P(\hat{H}|11\rangle )\)

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