Laser cooling atomic objects with phonon pumping

An apparatus comprising at least one processor and memory storing computer-executable instructions, the computer-executable instructions configured to, when executed by the at least one processor, cause the apparatus to at least:

• control one or more voltage sources to cause a confinement apparatus to confine an atomic object at a position defined by the confinement apparatus, the confinement apparatus comprises (a) one or more radio frequency (RF) electrodes defining an RF null axis of the confinement apparatus and (b) a plurality of control electrodes, wherein the atomic object comprises at least two quantum objects, the at least two quantum objects comprising a first component of a first species of the at least two quantum objects and a second component of a second species of the at least two quantum objects, wherein motion of the atomic object at the position defined by the confinement apparatus comprises contributions from one or more radial motional modes of the atomic object and contributions from one or more axial motional modes of the atomic object;
• cause at least one first control signal to be provided to at least one control electrode of the plurality of control electrodes, wherein the at least one first control signal causes the at least one control electrode to generate an oscillating potential at the position defined by the confinement apparatus and configured to cause at least one radial motional mode of the one or more radial motional modes of the atomic object to couple to at least one axial motional mode of the one or more axial motional modes of the atomic object or cause two radial motional modes of the atomic object to couple to each other such that motional energy is transferred from the at least one radial motional mode to the at least one axial motional mode or between the two radial motional modes, the two radial motional modes are perpendicular to each other, and the oscillating potential has a frequency that equals a frequency difference between the at least one radial motional mode and the at least one axial motional mode or a frequency difference between the two radial motional modes;
• and
• control one or more manipulation sources to cause cooling signals to be incident on the atomic object, wherein the at least one radial motional mode is dominated by motion of the first component of the first species of the at least two quantum objects and the cooling signals are tuned to cause cooling of the second component of the second species of the at least two quantum objects.