One-spin quantum logic gates from exchange interactions and a global magnetic field

(2) University of Wisconsin); Daniel A. Lidar (1); Lian-Ao Wu (1); Mark Friesen (2) ((1) Center for Quantum Information; Quantum Control; University of Toronto

arxiv: quant-ph/0310094 · v2 · submitted 2003-10-14 · 🪐 quant-ph · cond-mat

One-spin quantum logic gates from exchange interactions and a global magnetic field

Lian-Ao Wu (1) , Daniel A. Lidar (1) , Mark Friesen (2) ((1) Center for Quantum Information , Quantum Control , University of Toronto , (2) University of Wisconsin) This is my paper

classification 🪐 quant-ph cond-mat

keywords gatesexchangeglobalinteractionsmagneticone-qubitonlyquantum

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It 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.

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One-spin quantum logic gates from exchange interactions and a global magnetic field

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