NMR Time Reversal as a Probe of Incipient Turbulent Spin Dynamics

Abstract

We demonstrate time reversal of nuclear spin dynamics in highly magnetized dilute liquid 3He-4He mixtures through effective inversion of long-range dipolar interactions. These experiments, which involve using magic sandwich NMR pulse sequences to generate spin echoes, probe the spatiotemporal development of turbulent spin dynamics and promise to serve as a versatile tool for the study and control of dynamic magnetization instabilities. We also show that a repeated magic sandwich pulse sequence can be used to dynamically stabilize modes of nuclear precession that are otherwise intrinsically unstable. To date, we have extended the effective precession lifetimes of our magnetized samples by more than three orders of magnitude.

References in corpus (2)

• Tuning the dipolar interaction in quantum gases
• Non-linear amplification of small spin precession using long range dipolar interactions

Cited by in corpus (5)

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• NMR Time Reversal Experiments in Highly Polarised Liquid 3He-4He Mixtures
• Magic composite pulses
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