Posted on August 20, 2013 Updated on September 3, 2013
Coherent dynamical recoupling of diffusion-driven decoherence in magnetic resonance
Gonzalo A. Álvarez, Noam Shemesh, and Lucio Frydman
Department of Chemical Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
Received 13 May 2013; published 20 August 2013
During recent years, dynamical decoupling (DD) has gained relevance as a tool for manipulating and interrogating quantum systems. This is particularly relevant for spins involved in nuclear magnetic resonance (NMR), where DD sequences can be used to prolong quantum coherences, or to selectively couple or decouple the effects imposed by random environmental fluctuations. In this Letter, we show that these concepts can be exploited to selectively recouple diffusion processes in restricted spaces. The ensuing method provides a novel tool to measure restriction lengths in confined systems such as capillaries, pores or cells. The principles of this method for selectively recoupling diffusion-driven decoherence, its standing within the context of diffusion NMR, extensions to the characterization of other kinds of quantum fluctuations, and corroborating experiments, are presented.
© 2013 American Physical Society
via Phys. Rev. Lett. 111, 080404 (2013): Coherent Dynamical Recoupling of Diffusion-Driven Decoherence in Magnetic Resonance.
arXiv: [1305.2794] Coherent dynamical recoupling of diffusion-driven decoherence in magnetic resonance.
This entry was posted in Publications and tagged capillaries, cells, decoherence, diffusion, dynamical decoupling, field nmr, gradient spin echo, magnetic resonance spectroscopy, NMR, nuclear magnetic resonance, nuclear magnetic resonance spectroscopy, pores, quantum control, quantum physics, quantum science, research, restricted diffusion, restriction length, science, SDR, selective dynamical decoupling, spectroscopy nmr, spin dynamics, spin-echo, weizmann institute of science.
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[…] diffusion decoherence effects driven by fluctuations arising from restricted molecular diffusion [G. A. Álvarez, N. Shemesh, and L. Frydman, Phys. Rev. Lett. 111, 080404 (2013)]. The fully-refocused, constant-time, and constant-number-of-pulses nature of SDR also allows one […]
[…] Please see the article published in the Interface Magazine of the Weizmann Institute about our work on “Coherent Dynamical Recoupling of Diffusion-Driven Decoherence in Magnetic Resonance“: […]
[…] distributions noninvasively. The method relies on its ability to probe confining lengths with a (length)^6 parametric sensitivity, in a constant-time, constant-number-of-gradients fashion; combined, these attributes provide […]
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