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We present a novel platform for the bottom-up construction of itinerantmany-body systems: ultracold atoms transferred from a Bose-Einstein condensateinto freely configurable arrays of micro-lens generated focused-beam dipoletraps. This complements traditional optical lattices and gives a new quality tothe field of two-dimensional quantum simulators. The ultimate control oftopology, well depth, atom number, and interaction strength is matched bysufficient tunneling. We characterize the required light fields, derive theBose-Hubbard parameters for several alkali species, investigate the loadingprocedures and heating mechanisms. To demonstrate the potential of thisapproach, we analyze coupled annular Josephson contacts exhibiting many-bodyresonances.

Quantum simulators by design - many-body physics in reconfigurable arrays of tunnel-coupled traps