55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024;
Fort Worth, Texas
Session S00: Poster Session III (4pm-6pm CDT)
4:00 PM,
Thursday, June 6, 2024
Room: Hall BC
Abstract: S00.00045 : Long-wavelength Transitions in Yb Atom Arrays for Quantum Science
Abstract
Presenter:
Jacob Barnhart
(University of Michigan)
Authors:
Jacob Barnhart
(University of Michigan)
Chun-Wei Liu
(University of Michigan)
Alex Burgers
(University of Michigan)
Neutral atoms trapped in arrays of optical tweezers are a leading platform for quantum information science. Optical tweezers provide precise control over atomic positions, which enables arbitrary system geometries and coherent transport of atoms. This tool facilitates programmable systems capable of exploring collective dynamics in ordered atomic systems and the integration of atoms with dispersion-engineered nanophotonic structures. A system of atoms in an ordered array will experience collective interactions that dramatically alter the optical response of the system. The radiation pattern of an atom in the array will be perturbed by the scattered field of nearby atoms at the same optical transition wavelength. Depending on the interatomic spacing, the scattered fields from the atoms will interfere in a cooperative response, which can be constructive (super-radiant) or destructive (sub-radiant). Controlling the collective response of the system leads to applications in quantum memories, quantum sensors, and the generation of non-classical states of light using atomic photonic elements. The photonic environment the atoms experience can also be engineered by coupling arrays of atoms to nanophotonic structures, enabling a modular quantum architecture for computing, sensing, and communication. In each case, we leverage long wavelength transitions in the telecom band (1.4 um to 1.9 um) connected to coherent metastable states in ytterbium (Yb). The telecom probe transitions realize a system capable of exploring collective effects when combined with shorter tweezer trapping wavelengths, and enable the use of established silicon nanofabrication techniques for these nanophotonic structures. We present progress toward probing collective effects in atom arrays and integrating these arrays with dispersion-engineered nanophotonics.