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29 March 2024
 
  » arxiv » quant-ph/0310094

 Article overview


One-spin quantum logic gates from exchange interactions and a global magnetic field
Lian-Ao Wu ; Daniel A. Lidar ; Mark Friesen ;
Date 14 Oct 2003
Journal Phys. Rev. Lett. 93, 030501 (2004) DOI: 10.1103/PhysRevLett.93.030501
Subject quant-ph cond-mat
Affiliation Center for Quantum Information and Quantum Control, University of Toronto, University of Wisconsin
AbstractIt has been widely assumed that one-qubit gates in spin-based quantum computers suffer from severe technical difficulties. We show that one-qubit gates can in fact be generated using only modest and presently feasible technological requirements. Our solution uses only global magnetic fields and controllable Heisenberg exchange interactions, thus circumventing the need for single-spin addressing.
Source arXiv, quant-ph/0310094
Other source [GID 962112] pmid15323809
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