Objective
In modern physics we are faced with the unsatisfactory situation that the Standard Model (SM), which condenses our current state of knowledge in the form of quantum field theories, despite its spectacular success in the prediction of laboratory results, fails in explaining even the most basic properties of our Universe, such as the disparity of matter and antimatter and the possible existence of dark matter. In the quest to search for answers to these questions, low energy, high precision experiments in ion traps have taken a pivotal role by allowing precise tests of the charge, parity and time (CPT) reversal symmetry.
I propose an ambitious, next-generation Penning-trap experiment that will enable us to directly compare the magnetic moments of electron and positron at 14 digits precision. To this end, we will simultaneously trap a single positron and an electron in the same trap and directly compare their spin precession frequencies. To enable the co-trapping of the oppositely charged particle and antiparticle, we will bind the electron in a hydrogenlike 4He+ ion. As a result of the binding, the spins of both particles show a slow beat, which can be accurately measured. Any deviation of this beat frequency from the prediction by quantum electrodynamics (QED) reveals a CPT violation. This way, LSYM will enable a uniquely sensitive comparison of particle and antiparticle charge, mass and g-factors and thus yield the most stringent CPT test in the lepton sector.
To this end, we will develop a novel, superconducting Penning trap apparatus, which can be cooled to millikelvin temperatures to largely eliminate black-body radiation. Building upon techniques recently pioneered by my group, LSYM will allow the coherent “quantum” measurement of the difference of the spin precession frequencies.
Furthermore, with this toolbox at hand, we will have access to a new class of intriguing measurements, such as an order of magnitude improved determination of the electron atomic mass.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2022-ADG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
80539 MUNCHEN
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.