相关论文: Generating Unexpected Spin Echoes in Dipolar Solid…

The present work is a comment on PRL 98, 190401 (2007), arXiv:0705.0667 . The authors reported NMR measurements in solids with different pulse sequences. In some multiple $\pi$ pulse echo trains they observed coherent signals of several…

NMR spin echo measurements of C-13 in C60, Y-89 in Y2O3, and Si-29 in silicon are shown to defy conventional expectations when more that one pi pulse is used. Multiple pi-pulse echo trains may either freeze our or accelerate the decay of…

This submission has been withdrawn by arXiv administrators because it is a duplicate of 0704.2182.

In spectroscopy, it is conventional to treat pulses much stronger than the linewidth as delta-functions. In NMR, this assumption leads to the prediction that pi pulses do not refocus the dipolar coupling. However, NMR spin echo measurements…

This paper has been withdrawn because its ideas have been incorporated into arXiv:0905.3971 and explained much better there.

This paper was withdrawn by arXiv administrators. It is an erroneous duplicate submission of math.NA/0405095.

This submission has been withdrawn by arXiv administrators because it is a duplicate of astro-ph/0701570.

This paper has been withdrawn by authors for significant modification.

This submission was withdrawn because of an unresolved dispute between the authors [arXiv admin 2009-4-13].

This paper has been withdrawn by arXiv administrators because of an inappropriate amount of overlap with hep-th/0505013.

This submission has been withdrawn because it is a duplicate of [math.PR/0609434].

This submission has been withdrawn by arXiv admins because it contains inappropriate overlap with arXiv:physics/0603087.

This paper has been withdrawn due to an error. We plan to replace it with a corrected version.

This paper has been withdrawn because it overlaps with arXiv:1203.6583

This submission has been removed by arXiv administrators because it is a duplicate of astro-ph/0603735.

This submission has been withdrawn by the authors because it is a duplicate of arXiv:hep-ph/0611336. It was due to a technical submission error by the authors.

This paper has been removed by arXiv administrators because it plagiarizes gr-qc/0404032 and others.

This paper has been withdrawn by the authors due to errors in the X-ray diffraction data. Other measured data are not affected; however, the errors significantly change the interpretation and conclusions, and thus warrant withdrawal and…

This submission has been withdrawn by arXiv administrators because it is a duplicate of nucl-th/0610004.

This paper has been withdrawn. Please see astro-ph/0502366.