Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2006-05-29
Phys. Rev. Lett. 97, 207206 (2006)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 4 figures. Final PRL version
Scientific paper
10.1103/PhysRevLett.97.207206
Experiments involving phase coherent dynamics of networks of spins, such as echo experiments, will only work if decoherence can be suppressed. We show here, by analyzing the particular example of a crystalline network of Fe8 molecules, that most decoherence typically comes from pairwise interactions (particularly dipolar interactions) between the spins, which cause `correlated errors'. However at very low T these are strongly suppressed. These results have important implications for the design of quantum information processing systems using electronic spins.
Morello Andrea
Stamp Philip C. E.
Tupitsyn Igor S.
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