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Light-cone-like spreading of correlations in a quantum many-body system
Marc Cheneau, Peter Barmettler, Dario Poletti +7
How fast can correlations spread in a quantum many-body system? Based on the seminal work by Lieb and Robinson, it has recently been shown that several interacting many-body system…
Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mott Insulators
M. Endres, M. Cheneau, T. Fukuhara +8
Quantum phases of matter are characterized by the underlying correlations of the many-body system. Although this is typically captured by a local order parameter, it has been shown…
Coherent light scattering from a two-dimensional Mott insulator
Christof Weitenberg, Peter Schauß, Takeshi Fukuhara +4
We experimentally demonstrate coherent light scattering from an atomic Mott insulator in a two-dimensional lattice. The far-field diffraction pattern of small clouds of a few hundr…
Single-Spin Addressing in an Atomic Mott Insulator
Christof Weitenberg, Manuel Endres, Jacob F. Sherson +5
Ultracold atoms in optical lattices are a versatile tool to investigate fundamental properties of quantum many body systems. In particular, the high degree of control of experiment…