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Verhandlungen
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DPG

Heidelberg 2015 – scientific programme

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A: Fachverband Atomphysik

A 18: Poster: Ultra-cold atoms, ions and BEC (with Q)

A 18.23: Poster

Tuesday, March 24, 2015, 17:00–19:00, C/Foyer

Quantum Point Contacts for Strongly Interacting FermionsSebastian Krinner, •Dominik Husmann, Martin Lebrat, Charles Grenier, Jean-Philippe Brantut, and Tilman Esslinger — Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland

We extend the concepts of quantum simulation to device-like structures connected to atomic reservoirs. We use high-resolution microscopy to write tiny structures, such as a quantum point contact (QPC). The connected reservoirs allow us to measure transport in direct analogy to solid-state physics experiments, where transport measurements constitute an extremely sensitive tool to detect many-body effects. Here we study transport through a QPC in the normal, strongly interacting and superfluid regime. The system thereby goes smoothly from a regime exhibiting quantized conductance to a regime showing non-linear I-V characteristics.

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