5 papers
Spin transport in a one-dimensional quantum wire
A. -M. Visuri, M. Lebrat, S. Häusler +2
We analyze the spin transport through a finite-size one-dimensional interacting wire connected to noninteracting leads. By combining renormalization-group arguments with other anal…
Quantized conductance through a dissipative atomic point contact
Laura Corman, Philipp Fabritius, Samuel Häusler +5
Signatures of quantum transport are expected to quickly vanish as dissipation is introduced in a system. This dissipation can take several forms, including that of particle loss, w…
Quantized conductance through a spin-selective atomic point contact
Martin Lebrat, Samuel Häusler, Philipp Fabritius +3
We implement a microscopic spin filter for cold fermionic atoms in a quantum point contact (QPC) and create fully spin-polarized currents while retaining conductance quantization.…
The quantized Hall conductance of a single atomic wire: A proposal based on synthetic dimensions
G. Salerno, H. M. Price, M. Lebrat +5
We propose a method by which the quantization of the Hall conductance can be directly measured in the transport of a one-dimensional atomic gas. Our approach builds on two main ing…
Breakdown of the Wiedemann-Franz law in a unitary Fermi gas
Dominik Husmann, Martin Lebrat, Samuel Häusler +3
We report on coupled heat and particle transport measurements through a quantum point contact (QPC) connecting two reservoirs of resonantly interacting, finite temperature Fermi ga…