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11 papers · 2 filters
Doppler Spectroscopy of an Ytterbium Bose-Einstein Condensate on the Clock Transition
A. Dareau, M. Scholl, Q. Beaufils +3
We describe Doppler spectroscopy of Bose-Einstein condensates of ytterbium atoms using a narrow optical transition. We address the optical clock transition around 578 nm between th…
The third virial coefficient of a two-component unitary Fermi gas across an Efimov-effect threshold
Chao Gao, Shimpei Endo, Yvan Castin
We consider a mixture of two single-spin-state fermions with an interaction of negligible range and infinite -wave scattering length. By varying the mass ratio across $α_c\s…
Emergence of coherence in a uniform quasi-two-dimensional Bose gas
Lauriane Chomaz, Laura Corman, Tom Bienaimé +5
Phase transitions are ubiquitous in our three-dimensional world. By contrast most conventional transitions do not occur in infinite uniform two-dimensional systems because of the i…
Periodically-driven quantum matter: the case of resonant modulations
N. Goldman, J. Dalibard, M. Aidelsburger +1
Quantum systems can show qualitatively new forms of behavior when they are driven by fast time-periodic modulations. In the limit of large driving frequency, the long-time dynamics…
Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
M. Aidelsburger, M. Lohse, C. Schweizer +6
Sixty years ago, Karplus and Luttinger pointed out that quantum particles moving on a lattice could acquire an anomalous transverse velocity in response to a force, providing an ex…
Peltier cooling of fermionic quantum gases
Charles Grenier, Antoine Georges, Corinna Kollath
We propose a cooling scheme for fermionic quantum gases, based on the principles of the Peltier thermoelectric effect and energy filtering. The system to be cooled is connected to…