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Reversible and Irreversible Propagation of Quantum Information and Its Manifestation in Multiple-Quantum NMR Spectra in Solids
Journal of Experimental and Theoretical Physics ( IF 1.1 ) Pub Date : 2020-09-22 , DOI: 10.1134/s1063776120060096
V. E. Zobov , A. A. Lundin

Abstract

On the basis of the earlier developed statistical theory of the growth of the effective size of correlated clusters (the number of correlated spins), an expression for the shape of the multiple-quantum (MQ) NMR spectrum is obtained that takes into account the loss of coherence in a spin system due, for example, to the controlled intervention of the experimenter. It is shown that the scrambling and decoherence processes in the MQ spectrum of the multiparticle system of a solid are not separated, unlike the corresponding spectra of some large isolated molecules [27] in a solution. The relations obtained allow one to extract the necessary information about the above processes (scrambling and decoherence) from the dependence of the MQ spectra on experimental parameters.



中文翻译:

固体中多量子核磁共振谱中量子信息的可逆和不可逆传播及其表现

摘要

基于较早发展的相关簇有效尺寸(相关自旋数)增长的统计理论,获得了考虑到损耗的多量子(MQ)NMR光谱形状的表达式自旋系统中的相干性,例如由于实验者的受控干预。结果表明,固体多粒子系统的MQ光谱中的加扰和退相干过程没有分离,这与溶液中一些大的分离分子的相应光谱[27]不同。获得的关系允许从MQ光谱对实验参数的依赖性中提取有关上述过程(加扰和去相干)的必要信息。

更新日期:2020-09-23
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