Towards Rydberg-dressed 40K atoms in a three-dimensional optical lattice

Tsai, Pei-Wen

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https://hdl.handle.net/2142/117703 Copy

Description

Title

Towards Rydberg-dressed 40K atoms in a three-dimensional optical lattice

Author(s)

Tsai, Pei-Wen

Issue Date

2022-08-15

Director of Research (if dissertation) or Advisor (if thesis)

DeMarco, Brian

Doctoral Committee Chair(s)

Lorentz, Virginia

Committee Member(s)

• Kwiat, Paul
• Wagner, Lucas

Department of Study

Physics

Discipline

Physics

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

• Rydberg dressing
• optical lattice
• quantum simulation

Abstract

Realizing long-range interactions to simulate physics beyond a minimal Hubbard model has been a long-standing goal in quantum simulation. In a system composed of ultracold neutral atoms, long-range interactions can be achieved by exploiting the van der Waals interactions between Rydberg states. However, the lifetime of a Rydberg state is short compared to the motional timescale in an optical lattice. To extend the lifetime of atoms, Rydberg dressing was proposed. In Rydberg dressing, the ground state is off-resonantly coupled to a Rydberg state thereby acquires a small fraction of the Rydberg state. In this work, we propose to realize Rydberg dressed 40K atoms in a 3D optical lattice and observe the effects of Rydberg dressed interactions using microwave spectroscopy. We determined the excitation parameters according to the design goals and predicted the microwaves spectrum in the presence of Rydberg dressed interactions. We also built and characterized a frequency stabilization system for the Rydberg dressing lasers.

Graduation Semester

2022-12

Type of Resource

Thesis

Copyright and License Information

Copyright 2022 Pei-Wen Tsai

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