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Title:

Far-from-Equilibrium Spin Transport in Heisenberg Quantum Magnets

Document type:
Zeitschriftenaufsatz
Author(s):
Hild, Sebastian; Fukuhara, Takeshi; Schauß, Peter; Zeiher, Johannes; Knap, Michael; Demler, Eugene; Bloch, Immanuel; Gross, Christian
Abstract:
We study experimentally the far-from-equilibrium dynamics in ferromagnetic Heisenberg quantum magnets realized with ultracold atoms in an optical lattice. After controlled imprinting of a spin spiral pattern with an adjustable wave vector, we measure the decay of the initial spin correlations through single-site resolved detection. On the experimentally accessible time scale of several exchange times, we find a profound dependence of the decay rate on the wave vector. In one-dimensional systems,...     »
Journal title:
Physical Review Letters 2014-10
Year:
2014
Journal volume:
113
Journal issue:
14
Fulltext / DOI:
doi:10.1103/physrevlett.113.147205
Publisher:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Date of publication:
03.10.2014
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