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35 papers · 1 filter
Direct imaging of topological edge states in cold-atom systems
N. Goldman, J. Dalibard, A. Dauphin +4
Detecting topological order in cold-atom experiments is an ongoing challenge, the resolution of which offers novel perspectives on topological matter. In material systems, unambigu…
A reversible optical memory for twisted photons
L. Veissier, A. Nicolas, L. Giner +4
We report on an experiment in which orbital angular momentum of light is mapped at the single-photon level into and out of a cold atomic ensemble. Based on the dynamic electromagne…
Analytical and numerical study of uncorrelated disorder on a honeycomb lattice
Kean Loon Lee, Benoît Grémaud, Christian Miniatura +1
We consider a tight-binding model on the regular honeycomb lattice with uncorrelated on-site disorder. We use two independent methods (recursive Green's function and self-consisten…
Cavity quantum electrodynamics with charge-controlled quantum dots coupled to a fiber Fabry-Perot cavity
J. Miguel-Sanchez, A. Reinhard, E. Togan +5
We demonstrate non-perturbative coupling between a single self-assembled InGaAs quantum dot and an external fiber-mirror based microcavity. Our results extend the previous realizat…
Strongly Interacting Two-Dimensional Bose Gases
Li-Chung Ha, Chen-Lung Hung, Xibo Zhang +3
We prepare and study strongly interacting two-dimensional Bose gases in the superfluid, the classical Berezinskii-Kosterlitz-Thouless (BKT) transition, and the vacuum-to-superfluid…
A single ion coupled to an optical fiber cavity
Matthias Steiner, Hendrik M. Meyer, Christian Deutsch +2
We present the realization of a combined trapped-ion and optical cavity system, in which a single Yb^+ ion is confined by a micron-scale ion trap inside a 230 mum-long optical fibe…