Cluster of Dipolar Coupled Spins as a Quantum Memory Storage
  Spin dynamics of a cluster of coupled spins 1/2 can be manipulated to store and process a large amount of information. A new type of dynamic response makes it possible to excite coherent long-living signals, which can be used for exchanging information with a mesoscopic quantum system. An experimental demonstration is given for a system of 19 proton spins of a liquid crystal molecule. 
A. K. Khitrin, V. L. Ermakov, and B. M. Fung