Cryptographic Aspects of Quantum Reading

Entropy

关键词: quantum reading;    data storage;    security;    quantum entanglement;    quantum channel discrimination;    quantum fidelity;    Gaussian states;   

DOI  :  10.3390/e17042218

来源: mdpi

【 摘 要 】

Besides achieving secure communication between two spatially-separated parties, another important issue in modern cryptography is related to secure communication in time, i.e., the possibility to confidentially store information on a memory for later retrieval. Here we explore this possibility in the setting of quantum reading, which exploits quantum entanglement to efficiently read data from a memory whereas classical strategies (e.g., based on coherent states or their mixtures) cannot retrieve any information. From this point of view, the technique of quantum reading can provide a new form of technological security for data storage.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland