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arXiv · 1608.05471

Depolarization dynamics in a strongly interacting solid-state spin ensemble

Joonhee Choi·Soonwon Choi·Georg Kucsko·Peter C. Maurer·Brendan J. Shields·Hitoshi Sumiya·Shinobu Onoda·Junichi Isoya·Eugene Demler·Fedor Jelezko·Norman Y. Yao·Mikhail D. Lukin
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Abstract

We study the depolarization dynamics of a dense ensemble of dipolar interacting spins, associated with nitrogen-vacancy centers in diamond. We observe anomalously fast, density-dependent, and non-exponential spin relaxation. To explain these observations, we propose a microscopic model where an interplay of long-range interactions, disorder, and dissipation leads to predictions that are in quantitative agreement with both current and prior experimental results. Our results pave the way for controlled many-body experiments with long-lived and strongly interacting ensembles of solid-state spins.

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Joonhee Choi, Soonwon Choi, Georg Kucsko, Peter C. Maurer, Brendan J. Shields, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Eugene Demler, Fedor Jelezko, Norman Y. Yao, Mikhail D. Lukin. 2016-10-18. Depolarization dynamics in a strongly interacting solid-state spin ensemble. https://doi.org/10.1103/physrevlett.118.093601

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