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14 papers · 2 filters
Collective modes of an imbalanced unitary Fermi gas
Johannes Hofmann, Frédéric Chevy, Olga Goulko +1
We study theoretically the collective mode spectrum of a strongly imbalanced two-component unitary Fermi gas in a cigar-shaped trap, where the minority species forms a gas of polar…
Conductivity spectrum of ultracold atoms in an optical lattice
Rhys Anderson, Fudong Wang, Peihang Xu +4
We measure the conductivity of neutral fermions in a cubic optical lattice. Using in-situ fluorescence microscopy, we observe the alternating current resultant from a single-freque…
Postquench prethermalization in a disordered quantum fluid of light
P. -É. Larré, D. Delande, N. Cherroret
We study the coherence of a disordered and interacting quantum light field after propagation along a nonlinear optical fiber. Disorder is generated by a cross-phase modulation with…
Topological Insulators in the Honeycomb Lattice
Ulrike Bornheimer, Christian Miniatura, Benoît Grémaud
We investigate realizations of topological insulators with spin-1 bosons loaded in a honeycomb optical lattice and subjected to a spin-orbit coupling - a situation which ca…
Spin-gap spectroscopy in a bosonic flux ladder
Marcello Calvanese Strinati, Fabrice Gerbier, Leonardo Mazza
Ultracold bosonic atoms trapped in a two-leg ladder pierced by a magnetic field provide a minimal and quasi-one-dimensional instance to study the interplay between orbital magnetis…
Many-body localization for randomly interacting bosons
Piotr Sierant, Dominique Delande, Jakub Zakrzewski
We study many-body localization in a one dimensional optical lattice filled with bosons. The interaction between bosons is assumed to be random, which can be realized for atoms clo…