Towards Rydberg-dressed 40K atoms in a three-dimensional optical lattice
Tsai, Pei-Wen
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https://hdl.handle.net/2142/117703
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
Language
eng
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.
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