Fast closed-loop optimal control of ultracold atoms in an optical lattice

Abstract

We present experimental evidence of the successful closed-loop optimization of the dynamics of cold atoms in an optical lattice. We optimize the loading of an ultracold atomic gas minimizing the excitations in an array of one-dimensional tubes (3D-1D crossover) and we perform an optimal crossing of the quantum phase-transition from a Superfluid to a Mott-Insulator in a three-dimensional lattice. In both cases we enhance the experiment performances with respect to those obtained via adiabatic dynamics, effectively speeding up the process by more than a factor three while improving the quality of the desired transformation.

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• Direct observation of Anderson localization of matter-waves in a controlled disorder
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
• Single-Spin Addressing in an Atomic Mott Insulator
• Short-range quantum magnetism of ultracold fermions in an optical lattice
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• Room temperature Rydberg Single Photon Source
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