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In-situ equalization of single-atom loading in large-scale optical tweezers arrays
Kai-Niklas Schymik, Bruno Ximenez, Etienne Bloch +6
We report on the realization of large assembled arrays of more than 300 single Rb atoms trapped in optical tweezers in a cryogenic environment at ~K. For arrays with…
Single Atoms with 6000-Second Trapping Lifetimes in Optical-Tweezer Arrays at Cryogenic Temperatures
Kai-Niklas Schymik, Sara Pancaldi, Florence Nogrette +4
We report on the trapping of single Rb atoms in tunable arrays of optical tweezers in a cryogenic environment at K. We describe the design and construction of the experime…
Enhanced atom-by-atom assembly of arbitrary tweezers arrays
Kai-Niklas Schymik, Vincent Lienhard, Daniel Barredo +4
We report on improvements extending the capabilities of the atom-by-atom assembler described in [Barredo et al., Science 354, 1021 (2016)] that we use to create fully-loaded target…
Three-dimensional trapping of individual Rydberg atoms in ponderomotive bottle beam traps
Daniel Barredo, Vincent Lienhard, Pascal Scholl +4
We demonstrate three-dimensional trapping of individual Rydberg atoms in holographic optical bottle beam traps. Starting with cold, ground-state Rb atoms held in standard op…
Analysis of imperfections in the coherent optical excitation of single atoms to Rydberg states
Sylvain de Léséleuc, Daniel Barredo, Vincent Lienhard +2
We study experimentally various physical limitations and technical imperfections that lead to damping and finite contrast of optically-driven Rabi oscillations between ground and R…
Measurement of the Angular Dependence of the Dipole-Dipole Interaction Between Two Individual Rydberg Atoms at a Förster Resonance
Sylvain Ravets, Henning Labuhn, Daniel Barredo +2
We measure the angular dependence of the resonant dipole-dipole interaction between two individual Rydberg atoms with controlled relative positions. By applying a combination of st…
Single-atom trapping in holographic 2D arrays of microtraps with arbitrary geometries
Florence Nogrette, Henning Labuhn, Sylvain Ravets +5
We demonstrate single-atom trapping in two-dimensional arrays of microtraps with arbitrary geometries. We generate the arrays using a Spatial Light Modulator (SLM), with which we i…
Coherent collapse of a dipolar Bose-Einstein condensate for different trap geometries
J Metz, T Lahaye, B Fröhlich +5
We experimentally investigate the collapse dynamics of dipolar Bose- Einstein condensates of chromium atoms in different harmonic trap geometries, from prolate to oblate. The evolu…