Light-cone-like spreading of correlations in a quantum many-body system

Marc Cheneau (), Peter Barmettler, Dario Poletti, Manuel Endres, Peter Schauß, Takeshi Fukuhara, Christian Gross, Immanuel Bloch, Corinna Kollath and Stefan Kuhr
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Marc Cheneau: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Peter Barmettler: Université de Genève, 1211 Genève, Switzerland
Dario Poletti: Université de Genève, 1211 Genève, Switzerland
Manuel Endres: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Peter Schauß: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Takeshi Fukuhara: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Christian Gross: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Immanuel Bloch: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Corinna Kollath: Université de Genève, 1211 Genève, Switzerland
Stefan Kuhr: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany

Nature, 2012, vol. 481, issue 7382, 484-487

Abstract: No limit to the speed of information propagation exists in non-relativistic quantum field theory, but finite-velocity transport of correlations is now found in a system of ultracold atoms in an optical lattice, aiding fundamental understanding of closed quantum systems far from equilibrium.

Date: 2012
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DOI: 10.1038/nature10748

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