Dynamics of Ultracold Lithium in Modulated Optical Lattices
The extreme tunability and control that atomic physics provides makes quantum gases
ideal platforms for experimentally realizing novel synthetic materials beyond what is
traditionally realizable in condensed matter experiments. In particular, the ability to
control interparticle interactions allows for the realization of long lived nonequilibrium
states, and strong periodic modulation of lattice potentials realizes novel Floquet matter.
In this thesis I shall present a series of experiments studying the dynamics of ultracold
lithium in modulated and static one-dimensional optical lattices. First, I present an
overview of the experimental apparatus which includes a description of the generation of
our Bose-Einstein condensate and optical lattices. Then I step through four experiments
which we conducted. The rst two involve studying spatial dynamics in static optical
lattices in the ground and the excited bands which realize position-space Bloch oscillations
and a relativistic harmonic oscillator respectively. The third experiment studies transport
in Floquet hybridized optical lattice Bloch bands, and the fourth experiment investigates
prethermalization in strongly modulated lattices with tunable interactions.