Abstract: A system and method are provided of controlling a plurality of optical traps. The method comprises: generating the plurality of optical traps. each optical trap (“i”) having a trap intensity: measuring trap loading rates for each trap; minimizing differences between trap loading rates of different traps. the minimizing comprising adjusting of at least some of the traps the trap intensity to a further trap intensity based on the trap loading rates.

Abstract: The present disclosure relates to a method for arranging atoms in a target array of optical traps with predefined positions comprising: generating a given number of target traps at said predefined positions; generating reservoir traps, said reservoir traps and said target traps forming a traps array; defining allowed paths between traps of the traps array; loading atoms in the traps array to generate an initial loaded traps array; determining the positions of the atoms in the initial loaded traps array; calculating a sequence of moves using a rearrangement algorithm based on said initial loaded traps array and said allowed paths; and applying the sequence of moves to rearrange the atoms in the traps array and form a final loaded traps array.

Abstract: A quantum-computing device includes an atom-trapping unit configured to generate a three-dimensional array of optical tweezers in an ultra-high-vacuum chamber; an atom source, for generating a beam of atoms that is directed toward the space containing the three-dimensional array of optical tweezers; a magneto-optical system for cooling the atoms, the system being configured to generate, in the space containing the array, a gray molasses; and a system for applying quantum logic gates to atoms trapped in the optical tweezers of the array; and a cryostat for establishing a cryogenic temperature in the ultra-high-vacuum chamber; the atom-trapping unit comprising two lens-holding barrels placed facing, each barrel holding one of the aspherical lenses with a sufficient clearance to compensate for a differential in thermal contraction between the barrel and the lens during a passage from an ambient temperature to a cryogenic temperature.