104 citations · 1k across the 39 of their papers we have counts for
39 papers
Lattice Unitarity: Saturated Collisional Resistivity in Hubbard Metals
Frank Corapi, Robyn T. Learn, Benjamin Driesen +5
We investigate the interaction-induced resistivity of ultracold fermions in a three-dimensional optical lattice. In situ observations of transport dynamics enable the determination…
Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy
Ragheed Alhyder, Frédéric Chevy, Xavier Leyronas
We perform a diagrammatic analysis of the energy of a mobile impurity immersed in a strongly interacting two component Fermi gas to second order in the impurity-bath interaction. T…
Three-body contact for fermions. I. General relations
Félix Werner, Xavier Leyronas
We consider the resonant Fermi gas, that is, two-component fermions in three dimensions interacting by a short-range potential of large scattering length. We introduce a quantity,…
Mean-field vs RPA calculation of the energy of an impurity immersed in a spin 1/2 superfluid
Arnaud Bigué, Frédéric Chevy, Xavier Leyronas
In this article we calculate the energy of an impurity weakly coupled to a spin 1/2 fermionic superfluid. We show that the divergences resulting from three-body physics can only be…
An impurity immersed in a double Fermi Sea
Ragheed Alhyder, Xavier Leyronas, Frederic Chevy
We present a variational calculation of the energy of an impurity immersed a double Fermi sea of non-interacting Fermions. We show that in the strong-coupling regime, the system un…
Few vs many-body physics of an impurity immersed in a superfluid of spin 1/2 attractive fermions
Matthieu Pierce, Xavier Leyronas, Frédéric Chevy
In this article we investigate the properties of an impurity immersed in a superfluid of strongly correlated spin 1/2 fermions. For resonant interactions, we first relate the stabi…