Neutral atom quantum information processor

A system comprising:

• a confinement system for arranging an array of atoms in a first array state, the confinement system comprising:
• a crystal,
• an adjustable acoustic tone frequency application source configured to selectively apply a plurality of discrete adjustable acoustic tone frequencies to the crystal, and
• a laser source arranged pass light through the crystal to create a plurality of confinement regions, wherein each acoustic tone frequency corresponds to an individual confinement region,
• a source of an atom cloud, the atom cloud capable of being positioned to at least partially overlap with the plurality of confinement regions;
• an excitation source for evolving at least some of the plurality of atoms in the first array state into a plurality of atoms in a second array state, the excitation source comprising at least one source of photon energy;
• an observing system for observing the plurality of atoms in the second array state.

A system for controlling an array of trapped atoms comprising:

• a laser source for producing a laser output;
• a laser source controller that controls the laser source;
• a Pound-Drever-Hall (PDH) lock optically coupled to the laser source that receives at least some of the laser output and provides a feedback signal to the laser source controller for stabilizing the laser output;
• a reference optical cavity optically coupled to the laser source, the reference optical cavity configured to receive at least some of the laser output and to transmit a reference optical cavity output, the reference optical cavity output corresponding to a portion of the at least some of the laser output that falls within a reference optical cavity transmission window;
• and
• an optical isolator optically coupled to the reference optical cavity, the optical isolator configured to split the reference optical cavity output and to provide at least a portion of the split reference optical cavity output to a Fabry-Perot laser diode to injection lock the reference optical cavity output, wherein the optical isolator provides injection locked light to at least some of the trapped atoms.