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Far-from-Equilibrium Spin Transport in Heisenberg Quantum Magnets
Open accessAbstract
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, we observe diffusionlike spin transport with a dimensionless diffusion coefficient of 0.22(1). We show how this behavior emerges from the microscopic properties of the closed quantum system. In contrast to the one-dimensional case, our transport measurements for two-dimensional Heisenberg systems indicate anomalous superdiffusion.
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Citations
Cites
Zur Theorie der Metalle: I. Eigenwerte und Eigenfunktionen der linearen Atomkette
Bethe, H. (1931) · Zeitschrift f�r Physik · doi:10.1007/bf01341708 · Cited by 3,768
Cited by
Quantum simulations with ultracold atoms in optical lattices
Gross, C., & Bloch, I. (2017) · Science · doi:10.1126/science.aal3837 · Cited by 1,527
Self-citationErgodicity Breaking Arising from Hilbert Space Fragmentation in Dipole-Conserving Hamiltonians
Sala, P., Rakovszky, T., Verresen, R., Knap, M., & Pollmann, F. (2020) · Physical Review X · doi:10.1103/physrevx.10.011047 · Cited by 432
Self-citationFinite-temperature transport in one-dimensional quantum lattice models
Bertini, B., Heidrich-Meisner, F., Karrasch, C., Prosen, T., Steinigeweg, R., & Žnidarič, M. (2021) · Reviews of Modern Physics · doi:10.1103/revmodphys.93.025003 · Cited by 398
Quantum chaos and thermalization in isolated systems of interacting particles
Borgonovi, F., Izrailev, F. M., Santos, L. F., & Zelevinsky, V. G. (2016) · Physics Reports · doi:10.1016/j.physrep.2016.02.005 · Cited by 386
Site-resolved measurement of the spin-correlation function in the Fermi-Hubbard model
Parsons, M. F., Mazurenko, A., Chiu, C. S., Ji, G., Greif, D., & Greiner, M. (2016) · Science · doi:10.1126/science.aag1430 · Cited by 337
Metadata
- Authors
- Hild, S., Fukuhara, T., Schauß, P., Zeiher, J., Knap, M., Demler, E., Bloch, I., & Gross, C.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2014-10-03
- Volume
- 113
- Issue
- 14
- Pages
- 147205-147205
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2032872821
- Cited by
- 230
- References
- 1
- FWCI
- 11.15
- Type
- journal article
- Language
- en
- Open access
- green
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- Hild, S., Fukuhara, T., Schauß, P., Zeiher, J., Knap, M., Demler, E., Bloch, I., & Gross, C. (2014). Far-from-Equilibrium Spin Transport in Heisenberg Quantum Magnets. Physical Review Letters. https://doi.org/10.1103/physrevlett.113.147205
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