Optical Tweezer Arrays of Erbium Atoms.

Area of Science:

• Atomic Physics
• Quantum Optics
• Quantum Simulation

Background:

• Optical tweezers are crucial for manipulating neutral atoms.
• Erbium atoms offer unique properties for quantum applications.
• Precise control over single atoms is essential for quantum technologies.

Purpose of the Study:

• To achieve the first successful trapping of single erbium atoms in optical tweezers.
• To develop techniques for cooling, loading, and imaging erbium atoms.
• To explore the potential of erbium atoms for quantum simulation.

Main Methods:

• Utilizing a narrow-line optical transition for deep cooling and direct tweezer loading.
• Employing a specific tweezer wavelength to achieve magic trapping conditions.
• Implementing an ultrafast, high-fidelity fluorescence imaging scheme for time-resolved studies.

Main Results:

• Successful trapping of single erbium atoms demonstrated.
• Deep cooling and efficient loading achieved without extra recoil suppression.
• Magic trapping conditions reached by tuning light ellipticity.
• Time-resolved population dynamics during light-assisted collisions observed.
• Pair-ejection rate extracted and compared with theoretical models.

Conclusions:

• This work establishes a robust platform for single erbium atom manipulation in optical tweezers.
• Erbium atoms are shown to be a promising resource for quantum simulation.
• The developed techniques enable detailed studies of atom-light interactions and collisional dynamics.