…magnetism. III) Bose-Fermi mixtures with strong onsite repulsion give rise to a checkerboard supersolid phase with coexisting diagonal and off-diagonal long-range order. I will discuss new nonperturbative results obtained by…
A new form of quantum condensed matter physics is currently emerging from the study of ultra-cold fermionic atoms in optical lattices. Cooling these systems well into the quantum degenerate regime,…
…an ideal gas of majority atoms at the rim, MIT obtained an additional intermediate phase where both spin species coexist with unequal densities.Although the controversy is not fully settled, strong…
…structure, numerous isotopes including spinless bosons, and metastable triplet levels that lead to novel laser-cooling techniques and interactions. They present many new opportunities for the study and application of ultracold…
…of extending that type of study to quantum gases in higher dimensions (2D and 3D) and with controlled interactions. We will also discuss its significance in the rapidly growing domain…
…completed a study of these density shifts, and have explored quantum coherence in a one-dimensional optical lattice. The precision and control demonstrated by these experiments shows the promise of Strontium…
Scanning electron microscopy is routinely used to study solid objects on a nanometer scale. Applied to ultracold quantum gases it constitutes a powerful imaging and manipulation technique that combines single…
The achievement of excellent control of the motional and the internal quantum states of ultracold neutral atoms and ions has opened intriguing possibilities for quantum simulation and quantum computation. In…
…high precision the thermodynamics of locally homogeneous ultracold gases [1]. This allows stringent tests of recent many-body theories. First, we focus on the finite-temperature Equation of State (EoS) of the…
Bosonic mixtures in optical lattices are of interest for the study of the two-component Bose-Hubbard model with its connection to quantum magnetism, impurities and disorder, and of phonon-mediated effects. My…