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Searching for New Physics at the Quantum Technology Frontier

2–7 Jul 2023
Congressi Stefano Franscini (CSF), Ascona (Ticino), Switzerland
Europe/Zurich timezone

Session

Ions

6 Jul 2023, 16:00
Congressi Stefano Franscini (CSF), Ascona (Ticino), Switzerland

Congressi Stefano Franscini (CSF), Ascona (Ticino), Switzerland

Monte Verità Strada Collina 84 CH-​6612 Ascona (Ticino)

Conveners

Ions

  • Thomas Udem

Description

The field of cold atoms and ions is in continuous expansion with a growing number of applications in many different fields. By looking for deviations between accurate theoretical calculations with the experimental results allow to use cold atoms and ions to probe new physics in different ways, including searches for dark sectors and millicharged particles. The recent advances in manipulation and trapping techniques will allow us to push the limits of precision measurements with these systems even further and thus explore uncharted territories for new physics.

Presentation materials

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  1. 106. Session's intro
    Prof. Thomas Udem
    06/07/2023, 16:00
  2. 84. Quantum logic and precision measurements with atoms and molecules
    David Leibrandt (NIST/UCLA)
    06/07/2023, 16:05
    Talk

    The extreme precision and accuracy of state-of-the-art optical atomic clocks can be used to look for very small deviations from the predictions of the Standard Model, offering a tool to search for beyond Standard Model (BSM) physics complementary to particle accelerators. These searches are based on measuring the frequency ratio of two transitions that depend differently on interactions with...

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  3. 64. Penning trap precision experiments for fundamental physics
    Sven Sturm (Max Planck Society (DE))
    06/07/2023, 16:40
    Talk

    Experiments with single ions confined in a Penning trap enable access to a broad range of observables that are of fundamental importance for our understanding of fundamental physics. In the magnetic field of the trap, the cyclotron frequency of an ion can be determined with unique precision and gives direct access to the charge-to-mass ratio. Furthermore, we have access to the gyromagnetic...

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  4. 75. New measurement of the electron magnetic moment
    Xing Fan
    06/07/2023, 17:45
    Talk

    A single isolated electron in a Penning trap yields a new measurement of the electron magnetic moment g/2 = 1.001 159 652 180 59 (13).
    A comparison of the measured g-factor and the predicted g-factor using an independent measurement of the fine structure constant provides the most stringent test of the Standard Model.
    The newly constructed system used for this measurement which resulted in...

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  5. 31. Searching for new physics with isotope-shift spectroscopy of trapped ions
    Dr Diana Prado Lopes Aude Craik (ETH Zürich/MIT)
    06/07/2023, 18:20
    Talk

    I will present recent results of a search for new physics using isotope-shift spectroscopy of $\text{Yb}^+$ ions at MIT [1,2], and plans for IS spectroscopy experiments in $\text{Ca}^+$ at ETH Zurich. Recently, IS spectroscopy of atoms and ions has been proposed as a method to search for a new force between the neutron and the electron, mediated by a hypothetical dark-matter-candidate boson in...

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  6. 63. Towards Ramsey-Comb Spectroscopy of the 1S-2S Transition in He+
    Mr Elmer Grundeman (Vrije Universiteit Amsterdam)
    06/07/2023, 18:45
    Talk

    Precision spectroscopy of the 1S-2S transition in singly-ionized hydrogen-like helium is a promising avenue to test bound-state quantum electrodynamics. Additionally, combined with measurements on $\mu$He$^+$ [1], nuclear size effects and the nuclear polarizability can be probed [2]. He$^+$ can be confined in a Paul trap and sympathetically cooled by laser-cooled Be$^+$, which also serves as...

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