The demand for high-density data storage with ultrafast accessibilitymotivates the search for new memory implementations. Ideally such storagedevices should be robust to input error and to unreliability of individualelements; furthermore information should be addressed by its content ratherthan by its location. Here we present a concept for an associative memory whosekey component is a superconducting array with natural multiconnectivity. Itsintrinsic redundancy is crucial for the content-addressability of the resultingstorage device and also leads to parallel image retrieval. Because patterns arestored nonlocally both physically and logically in the proposed device,information access and retrieval are fault-tolerant. This superconductingmemory should exhibit picosecond single-bit acquisition times with negligibleenergy dissipation during switching and multiple non-destructive read-outs ofthe stored data.
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