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Experimental realization of a symmetry protected topological phase of interacting bosons with Rydberg atoms
Sylvain de Léséleuc, Vincent Lienhard, Pascal Scholl +6
The concept of topological phases is a powerful framework to characterize ground states of quantum many-body systems that goes beyond the paradigm of symmetry breaking. While a few…
Single-photon bound states in atomic ensembles
Yidan Wang, Michael J. Gullans, Antoine Browaeys +3
We illustrate the existence of single-excitation bound states for propagating photons interacting with two-level atoms. These bound states can be calculated from an effective s…
Optical transmission of an atomic vapor in the mesoscopic regime
T. Peyrot, Y. R. P. Sortais, J. -J. Greffet +5
By measuring the transmission of near-resonant light through an atomic vapor confined in a nano-cell we demonstrate a mesoscopic optical response arising from the non-locality indu…
Topologically protected edge states in small Rydberg systems
Sebastian Weber, Sylvain de Léséleuc, Vincent Lienhard +4
We propose a simple setup of Rydberg atoms in a honeycomb lattice which gives rise to topologically protected edge states. The proposal is based on the combination of dipolar excha…
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…
Coherent Scattering of Near-Resonant Light by a Dense, Microscopic Cloud of Cold Two-Level Atoms: Experiment versus Theory
Stephan Jennewein, Ludovic Brossard, Yvan R. P. Sortais +4
We measure the coherent scattering of low-intensity, near-resonant light by a cloud of laser-cooled two-level rubidium atoms with a size comparable to the wavelength of light. We i…