Speaker
Prof.
Andreas Hemmerich
(Hamburg University)
Description
Atoms trapped in optical lattices hold promises as a useful
new arena for studying many-body phenomena, possibly
providing helpful insights with regard to various
incompletely understood condensed matter scenarios.
Unfortunately, the shape that bosonic ground-state
wavefunctions can take is limited, apparently compromising
the usefulness of this approach for bosons. Such limitations,
however, do not apply to excited states, where orbital
degrees of freedom are essential. I will discuss our
observations of long coherence times, chiral superfluid order
and topological features in higher bands in a square optical
lattice.
Primary author
Prof.
Andreas Hemmerich
(Hamburg University)
