University of Illinois Urbana-Champaign

A SEARCH FOR TIME-REVERSAL SYMMETRY VIOLATION WITH THALLIUM FLUORIDE

Li, Jianhui

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6997.pdf
MI05_1.pptx

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https://hdl.handle.net/2142/122522

Description

Title
A SEARCH FOR TIME-REVERSAL SYMMETRY VIOLATION WITH THALLIUM FLUORIDE
Author(s)
Li, Jianhui
Contributor(s)
  • Kawall, David
  • Winick, Tristan
  • Demille, David
  • Yang, Yuanhang
  • Grasdijk, Olivier
  • Lamoreaux, Steve
  • Timgren, Oskari
  • Kastelic, Jakob
  • Zelevinsky, Tanya
Issue Date
2023-06-19
Keyword(s)
Fundamental physics
Abstract
The Cold molecule Nuclear Time-Reversal EXperiment (CeNTREX) aims to look for the fundamental time-reversal (T) symmetry violations in the hadronic sector. Violation of T symmetry is a necessary condition to dynamically generate the asymmetry in matter and anti-matter we observe in the universe. Many extensions of the standard model imply additional sources of T-violation larger than the standard model prediction. CeNTREX utilizes Ramsey interferometry on cryogenic beam of thallium fluoride (TlF) molecules to look for shifts in nuclear magnetic resonance frequencies in ²⁰⁵Tl nucleus when it is electrically polarized. To increase sensitivity, CeNTREX employs lasers, microwaves and electric fields to prepare and manipulate molecular quantum states. Laser-induced fluorescence readout of TlF then provides information on T-violating phase acquired during the Ramsey interferometry. We project significant improvements in the experimental upper bounds of various T-violating parameters. Here, we present on the motivation and progress of the experiment as well as the techniques involved.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/122522
DOI
https://doi.org/10.15278/isms.2023.6997

Owning Collections

Abstracts & Presentations - 2023 International Symposium on Molecular Spectroscopy PRIMARY