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VOLUME 62 (1995) | ISSUE 3 | PAGE 256
Single-electron spin logical gates
The possibility of implementing the simplest logical operations on the basis of single-electron spin gates, in which information is coded by single electron spins, is considered. It is shown that there are no fundamental limitations to the physical realization of such gates (it is possible to find a range of system parameters in which the entire truth table can be realized). However, for some types of the gates the magnitude of the average spin (which carries the information) proves to be rather small, which can present a serious problem for attempts at real fabrication of these gates. © 1995 American Institute of Physics.