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arXiv · 1607.04417

Time-dependent correlations in quantum magnets at finite temperature

B. Fauseweh·F. Groitl·T. Keller·K. Rolfs·D. A. Tennant·K. Habicht·G. S. Uhrig
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Abstract

In this article we investigate the time dependence of the gap mode of copper nitrate at various temperatures. We combine state-of-the-art theoretical calculations with high precision neutron resonance spin-echo measurements to understand the anomalous decoherence effects found previously in this material. It is shown that the time domain offers a complementary view on this phenomenon, which allows us to directly compare experimental data and theoretical predictions without the need of further intensive data analysis, such as (de)convolution.

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B. Fauseweh, F. Groitl, T. Keller, K. Rolfs, D. A. Tennant, K. Habicht, G. S. Uhrig. 2016-07-15. Time-dependent correlations in quantum magnets at finite temperature. https://doi.org/10.1103/physrevb.94.180404

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