  Periodic band structures are a hallmark phenomenon of condensed matter
physics. While often imposed by external potentials, periodicity can also arise
through the interplay of couplings that are not necessarily spatially periodic
on their own. Here, we investigate dynamics in a lattice structure that emerges
from the simultaneous application of Raman and radio frequency coupling to a
dilute-gas Bose-Einstein condensate. We demonstrate a variety of techniques
including Kapitza-Dirac scattering, Bloch oscillations, and lattice shaking
with spin and momentum resolved measurements. This combined coupling scheme
allows for exceptional tunability and control, enabling future investigations
into unconventional band structures such as quasi-flat ground bands and those
with semimetal-like band gaps.
