Measuring the electron's electric dipole moment using ultracold molecules

Informazioni relative al progetto

UltracoldEDM

ID dell’accordo di sovvenzione: 101018992

DOI

10.3030/101018992

Progetto concluso il 22 Aprile 2022

Data della firma CE 17 Marzo 2021

Data di avvio 14 Maggio 2021

Data di completamento 13 Maggio 2023

Finanziato da

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Costo totale

€ 224 933,76

Contributo UE

€ 224 933,76

Coordinato da

IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE
United Kingdom

Periodic Reporting for period 1 - UltracoldEDM (Measuring the electron's electric dipole moment using ultracold molecules)

Periodo di rendicontazione: 2021-05-14 al 2023-05-13

Sintesi del contesto e degli obiettivi generali del progetto

The observed imbalance between matter and anti-matter throughout the Universe could not be understood in the current framework of physics. This implies that there must be undiscovered physics that contains new particles and interactions. However, no new particles have been detected in the particle colliders. Another complementary way to test new physics is to measure the influence of the hypothetical particles on the properties of existing particles, for example, measuring the roundness of the electron. We aim at laser cooling and trapping heavy polar molecules and using the strong internal electric field of the molecules to precisely measure how round the electron is. This will shed light on the force that shaped the early Universe. In addition, the laser cooling techniques we develop will also advance the applications of ultracold molecules, including tests of fundamental physics, quantum simulation and quantum computation.

Lavoro eseguito dall’inizio del progetto fino alla fine del periodo coperto dalla relazione e principali risultati finora ottenuti

In the period of this project, we have constructed and tested most parts of the instrument that will be used for the measurement the roundness of the electron. We have proposed and numerically simulated a scheme for the measurement. We have understood a problem of the molecule structure that limits laser cooling of the molecules.

Progressi oltre lo stato dell’arte e potenziale impatto previsto (incluso l’impatto socioeconomico e le implicazioni sociali più ampie del progetto fino ad ora)

Our work on molecule structure will enable deep laser cooling of heavy molecules that are important for testing of fundamental physics. Our experimental setup will be used to measure the roundness of the electron 10 or 100 times better than the state of the art, which will probe new physics to an energy scale much higher than any conceivable particle colliders.

The proposed experimental setup