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Collective Decoherence of Nuclear Spin Clusters | A. Fedorov
; L. Fedichkin
; | Date: |
27 Feb 2005 | Subject: | Quantum Physics; Disordered Systems and Neural Networks | quant-ph cond-mat.dis-nn | Abstract: | The problem of dipole-dipole decoherence of nuclear spins is considered for strongly entangled spin cluster. Our results show that its dynamics can be described as the decoherence due to interaction with a composite bath consisting of fully correlated and uncorrelated parts. The correlated term causes the slower decay of coherence at larger times. The decoherence rate scales up as a square root of the number of spins giving the linear scaling of the resulting error. Our theory is consistent with recent experiment reported in decoherence of correlated spin clusters. | Source: | arXiv, quant-ph/0502178 | Services: | Forum | Review | PDF | Favorites |
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