An apparatus (100, 200-1, 200-2) for single ion addressing, comprising: a first optical cell (102, 202-1, 202-2) configured to: set a frequency, intensity, and a polarization of a laser beam emitted by a single laser (220-1, 220-2); and shutter the laser beam emitted by the single laser (220-1, 220-2); a second optical cell (104, 304) configured to align the shuttered laser beam emitted by the single laser (220-1, 220-2) to an ion in an ion trap formed on a surface of a chip such that the ion fluoresces light and/or performs a quantum operation when the ion is illuminated by the shuttered laser beam emitted by the single laser (220-1, 220-2), wherein the second optical cell (104, 304) includes: a chip having the surface on which the ion trap is formed; a lens configured to focus the shuttered laser beam emitted by the single laser (220-1, 220-2); and a mirror formed on the surface of the chip on which the ion trap is formed, wherein the mirror is configured to direct the focused shuttered laser beam emitted by the single laser (220-1, 220-2) at an ion in the ion trap such that the ion is illuminated by the focused shuttered laser beam; and a third optical cell configured to detect the light fluoresced from the ion when the ion is illuminated by the shuttered laser beam emitted by the single laser (220-1, 220-2). a first optical cell (102, 202-1, 202-2) configured to: set a frequency, intensity, and a polarization of a laser beam emitted by a single laser (220-1, 220-2); and shutter the laser beam emitted by the single laser (220-1, 220-2); set a frequency, intensity, and a polarization of a laser beam emitted by a single laser (220-1, 220-2); and shutter the laser beam emitted by the single laser (220-1, 220-2); a second optical cell (104, 304) configured to align the shuttered laser beam emitted by the single laser (220-1, 220-2) to an ion in an ion trap formed on a surface of a chip such that the ion fluoresces light and/or performs a quantum operation when the ion is illuminated by the shuttered laser beam emitted by the single laser (220-1, 220-2), wherein the second optical cell (104, 304) includes: a chip having the surface on which the ion trap is formed; a lens configured to focus the shuttered laser beam emitted by the single laser (220-1, 220-2); and a mirror formed on the surface of the chip on which the ion trap is formed, wherein the mirror is configured to direct the focused shuttered laser beam emitted by the single laser (220-1, 220-2) at an ion in the ion trap such that the ion is illuminated by the focused shuttered laser beam; and a chip having the surface on which the ion trap is formed; a lens configured to focus the shuttered laser beam emitted by the single laser (220-1, 220-2); and a mirror formed on the surface of the chip on which the ion trap is formed, wherein the mirror is configured to direct the focused shuttered laser beam emitted by the single laser (220-1, 220-2) at an ion in the ion trap such that the ion is illuminated by the focused shuttered laser beam; and a third optical cell configured to detect the light fluoresced from the ion when the ion is illuminated by the shuttered laser beam emitted by the single laser (220-1, 220-2).