4 August 2003 Storing, processing, and retrieving an image using quantum mechanics
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We investigate the storage and retrieval of an image in a multi-particle quantum mechanical system. Several models are studied and compared with corresponding classical digital methods. We consider a situation in which qubits replace classical bits in an array of pixels and show several advantages. For example, we consider the situation in which 4 different values are randomly stored in a single qubit and show that quantum mechanical properties allow better reproduction of original stored values compared with classical (even stochastic) methods. The retrieval process is uniquely quantum (involves measurement in more than one bases). The independence and the finiteness of the stored copies of the image play an important role in the quantum protocol being better than the classical one. Other advantages of quantum storage of an image are found in its security.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Salvador E Venegas-Andraca, Sougato Bose, "Storing, processing, and retrieving an image using quantum mechanics", Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); doi: 10.1117/12.485960; https://doi.org/10.1117/12.485960


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