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Proceedings Paper

An investigation of the antiferromagnet-based NMR quantum register in inhomogeneous magnetic field
Author(s): Alexander A. Kokin; Vladimir A. Kokin
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Paper Abstract

It is given the refinements and further development of NMR model of quantum register based on easy-axis nuclear spin-free antiferromagnet, which was presented previously in paper. The model suggests that external magnetic field is directed along the easy axis, normally to the plate surface and has a weak constant gradient along the nuclear spin chain of quantum register. In present paper it is evaluated the general expression for indirect coupling between nuclear spins due to hyperfine nuclear-electron coupling in substituted atoms and spin-wave propagation in antiferromagnet close to critical point of quantum phase transition in antiferromagnet of spin-flop type. It is given also an estimation of quantum states decoherence rate, which is caused by the interaction of nuclear spins with spin waves in antiferromagnet.

Paper Details

Date Published: 29 April 2008
PDF: 12 pages
Proc. SPIE 7023, Quantum Informatics 2007, 70230B (29 April 2008); doi: 10.1117/12.801902
Show Author Affiliations
Alexander A. Kokin, Institute of Physics and Technology (Russia)
Vladimir A. Kokin, Institute of Radioengineering and Electronics (Russia)

Published in SPIE Proceedings Vol. 7023:
Quantum Informatics 2007
Yuri I. Ozhigov, Editor(s)

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