Quantum Interference Phenomena in the Local Polarization Dynamics of Mesoscopic Systems: An NMR Observation
Condensed Matter
2016-08-31 v1
Abstract
It was predicted that local spin polarization in a ring of five dipolar coupled spins should present a particular fingerprint of quantum interferences reflecting both the discrete and finite nature of the system [Phys. Rev. Lett. 75 (1995) 4310]. We report its observation for the proton system of a (CH)Fe molecule using a rare C as {\it local probe}. Novel high frequency (Hz) polarization oscillations appear because incomplete C-H cross-polarization transfer {\it splits} the polarization state, in a portion that wanders in the proton system and one that remains in the C. They interfere with each other after rejoining.
Keywords
Cite
@article{arxiv.cond-mat/9609036,
title = {Quantum Interference Phenomena in the Local Polarization Dynamics of Mesoscopic Systems: An NMR Observation},
author = {Horacio M. Pastawski and Gonzalo Usaj and Patricia R. Levstein},
journal= {arXiv preprint arXiv:cond-mat/9609036},
year = {2016}
}
Comments
12 pages, RevTex, 4 Figures available upon request, to appear in Chemical Physics Letters