Quantum Dynamical Echoes in the Spin 'Diffusion' in Mesoscopic Systems
Preprint
- 3 April 1996
Abstract
The evolution of local spin polarization in finite systems involves interference phenomena that give rise to {\bf quantum dynamical echoes }and non-ergodic behavior. We predict the conditions to observe these echoes by exploiting the NMR sequences devised by Zhang et al. [Phys. Rev. Lett. {\bf % 69}, 2149 (1992)], which uses a rare $^{13}$C as {\bf local probe }for a dipolar coupled $^1$H spin system. The non-ideality of this probe when testing mesoscopic systems is carefully analyzed revealing the origin of various striking experimental features.Keywords
All Related Versions
- Version 1, 1996-04-03, ArXiv
- Published version: Physical Review Letters, 75 (23), 4310.
This publication has 0 references indexed in Scilit: