{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["10(1)"],"submitter":["Ham BS"],"pubmed_abstract":["Over decades quantum cryptography has been intensively studied for unconditionally secured key distribution in a quantum regime. Due to the quantum loopholes caused by imperfect single photon detectors and/or lossy quantum channels, however, the quantum cryptography is practically inefficient and even vulnerable to eavesdropping. Here, a method of unconditionally secured key distribution potentially compatible with current fiber-optic communications networks is proposed in a classical regime for high-speed optical backbone networks. The unconditional security is due to the quantum superposition-caused measurement indistinguishability between paired transmission channels and its unitary transformation resulting in deterministic randomness corresponding to the no-cloning theorem in a quantum key distribution protocol."],"journal":["Scientific reports"],"pagination":["11687"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7363683"],"repository":["biostudies-literature"],"pubmed_title":["Unconditionally secured classical cryptography using quantum superposition and unitary transformation."],"pmcid":["PMC7363683"],"pubmed_authors":["Ham BS"],"additional_accession":[]},"is_claimable":false,"name":"Unconditionally secured classical cryptography using quantum superposition and unitary transformation.","description":"Over decades quantum cryptography has been intensively studied for unconditionally secured key distribution in a quantum regime. Due to the quantum loopholes caused by imperfect single photon detectors and/or lossy quantum channels, however, the quantum cryptography is practically inefficient and even vulnerable to eavesdropping. Here, a method of unconditionally secured key distribution potentially compatible with current fiber-optic communications networks is proposed in a classical regime for high-speed optical backbone networks. The unconditional security is due to the quantum superposition-caused measurement indistinguishability between paired transmission channels and its unitary transformation resulting in deterministic randomness corresponding to the no-cloning theorem in a quantum key distribution protocol.","dates":{"release":"2020-01-01T00:00:00Z","publication":"2020 Jul","modification":"2024-02-15T02:44:46.534Z","creation":"2021-02-21T04:46:38Z"},"accession":"S-EPMC7363683","cross_references":{"pubmed":["32669598"],"doi":["10.1038/s41598-020-68038-7"]}}