Quantum coherence dynamics of spin pairs in many-spin cluster

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Abstract

We consider the dynamics of a quantum coherence of two chosen spins in systems of dipolar coupled nuclear spins s = 1 / 2 in solid. With the purpose to study this coherence we suggest two different methods. One of them uses the partial trace technique and reduced density matrix. The second method is based on the calculation the intensity of multiple quantum coherences using two-spin operator and the density matrix of the whole spin system. Results of calculations of the multiple-quantum dynamics in spin clusters of various dimensionalities are presented. It is shown that the whole density matrix method is more informative than the method based on the reduced density matrix. Crown

Original languageEnglish
Pages (from-to)4086-4091
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume373
Issue number44
DOIs
StatePublished - 26 Oct 2009

Keywords

  • Multiple quantum coherence
  • Spin dynamics

ASJC Scopus subject areas

  • General Physics and Astronomy

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