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Mesoscopic transport experiments with cold atoms
 
Institute of Physics, EPFL, Lausanne, Switzerland
Mercredi 07/06/2017, 11h00-12h00
SPEC Salle Itzykson, Bât.774, Orme des Merisiers

Over the last decade, the level of control over cold atomic gases has improved to the point that atoms can now be used to simulate the behavior of electrons in realistic materials. I will present the progresses that we accomplished in the last years in measuring the transport properties of cold atomic gases using the Landauer two terminals setup. I will present the first observation of quantized conductance for neutral particles [1]. Its evolution as attractive interactions between particles is increased up to unitarity will be presented as pairing and superfluidity emerge [2,3]. I will then describe the most recent technical developments, namely the transposition of scanning gate microscopy in the cold atoms context, and the observation of quantum interferences in transport.

References
[1] S. Krinner, D. Stadler, D.Husmann, J.P. Brantut and T. Esslinger, Nature 517, 65 (2015)
[2] D. Husmann, S. Uchino, S. Krinner, M. Lebrat, T. Giamarchi, T. Esslinger and J.P. Brantut, Science 350, 1498 (2015)
[3] S. Krinner, M. Lebrat, D. Husmann, C. Grenier, J.P. Brantut and T. Esslinger, Proceedings of the National Academy of Science, 113 8144 (2016)

 

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