Control of an atomic quadrupole transition in a phase-stable standing wave

TL;DR

This paper demonstrates precise control of an atomic quadrupole transition in a calcium ion using a phase-stable standing wave, enabling advanced quantum state manipulation and measurement.

Contribution

It introduces a method to engineer Rabi frequencies and AC Stark shifts using a passively phase-stable standing wave in a surface-electrode ion trap.

Findings

Successful spatial mapping of Rabi frequencies and AC Stark shifts.

Ability to tailor quantum control parameters for specific tasks.

Enhanced stability of the optical standing wave field.

Abstract

Using a single calcium ion confined in a surface-electrode trap, we study the interaction of electric quadrupole transitions with a passively phase-stable optical standing wave field sourced by photonics integrated within the trap. We characterize the optical fields through spatial mapping of the Rabi frequencies of both carrier and motional sideband transitions as well as AC Stark shifts. Our measurements demonstrate the ability to engineer favorable combinations of sideband and carrier Rabi frequency as well as AC Stark shifts for specific tasks in quantum state control and metrology.