Speaker
Dr
Paata Kakashivili
(NORDITA)
Description
Progress in ultracold atomic physics allows to engineer and
probe analogs of condensed matter systems. Using Feshbach
resonance and optical lattices experimentalist are able to
realize regimes where interactions between atoms play a
crucial role. I will describe how dimensional reduction, in
particular to 1D, is achieved by turning on an optical
lattice and how interactions can be tuned using Feshbach
resonance. For fermonic atoms and repulsive interactions,
regimes such as the spin-coherent Luttinger liquid and the
spin-incoherent Luttinger liquid can be realized by tuning
the inter-atomic interaction strength and trap parameters.
On the other hand, for attractive interactions, we study
pairing in a spin-imbalanced ultracold atomic system of
fermions to identify exotic states such as the 1D analog of
the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. In
addition, I will also describe possibilities to study
interplay between interaction and disorder in ultracold
atomic systems. In particular, we investigate the damped
hydrodynamic transport of a trapped Bose-Einstein condensate
of bosonic atoms through a disordered potential created by
an optical-speckle. Finally, I will summarize and address
the concrete prospects for realizing and probing these
phenomena experimentally using Feshbach resonances, optical
lattices and optical speckles.
Primary author
Dr
Paata Kakashivili
(NORDITA)
