C
Christof Weitenberg
Researcher at University of Hamburg
Publications - 56
Citations - 5122
Christof Weitenberg is an academic researcher from University of Hamburg. The author has contributed to research in topics: Optical lattice & Floquet theory. The author has an hindex of 22, co-authored 52 publications receiving 4288 citations. Previous affiliations of Christof Weitenberg include Saarland University & École Normale Supérieure.
Papers
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Single-atom-resolved fluorescence imaging of an atomic Mott insulator
TL;DR: Fluorescence imaging of strongly interacting bosonic Mott insulators in an optical lattice with single-atom and single-site resolution is reported, which fully reconstructs the atom distribution on the lattice and identifies individual excitations with high fidelity.
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Single-spin addressing in an atomic Mott insulator
Christof Weitenberg,Manuel Endres,Jacob F. Sherson,Marc Cheneau,Peter Schauß,Takeshi Fukuhara,Immanuel Bloch,Stefan Kuhr +7 more
TL;DR: This work was able to flip the spin of individual atoms in a Mott insulator with sub-diffraction-limited resolution, well below the lattice spacing, and created arbitrary spin patterns by sequentially addressing selected lattice sites after freezing out the atom distribution.
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Experimental reconstruction of the Berry curvature in a Floquet Bloch band
Nick Fläschner,Benno S. Rem,Matthias Tarnowski,Dominik Vogel,Dirk-Sören Lühmann,Klaus Sengstock,Christof Weitenberg +6 more
TL;DR: The Berry curvature is engineered and measured in a simulated boron-nitride optical lattice filled with fermionic K atoms and the results pave the way to explore intriguing phases of matter with interactions in topological band structures.
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Observation of dynamical vortices after quenches in a system with topology
Nick Fläschner,Dominik Vogel,Matthias Tarnowski,Benno S. Rem,Dirk-Sören Lühmann,Markus Heyl,Jan Carl Budich,Jan Carl Budich,Ludwig Mathey,Klaus Sengstock,Christof Weitenberg +10 more
TL;DR: In this paper, the appearance, movement and annihilation of dynamical vortices in momentum space after sudden quenches close to the topological phase transition were observed, interpreted as dynamical Fisher zeros of the Loschmidt amplitude.
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Observation of a dynamical topological phase transition
Nick Fläschner,Dominik Vogel,Matthias Tarnowski,Benno S. Rem,Dirk-Sören Lühmann,Markus Heyl,Jan Carl Budich,Ludwig Mathey,Klaus Sengstock,Christof Weitenberg +9 more
TL;DR: In this article, the first observation of a DPT in the dynamics of a fermionic many-body state after a quench between two lattice Hamiltonians was reported.