Project description
Leveraging exotic phases to advance quantum technologies
Quantum spin liquids are exotic phases of matter where the electron spins remain disordered even at absolute zero temperature. Unique properties, including long-range quantum entanglement, fractionalised excitations and topological order render them highly promising for quantum error correction and quantum memory. However, traditional bulk measurements cannot reveal their topological nature, and generating the required long-range entanglement is notoriously difficult. Supported by the Marie Skłodowska-Curie Actions programme, the Cavity-QSL project will study quantum spin liquids using single atoms trapped in an optical cavity. Researchers will implement a protocol to generate robust entanglement and extend techniques that allow precise atomic interactions. Cavity-QSL will help uncover the microscopic properties of quantum spin liquids, while also paving the way for new methods in creating strongly entangled matter.
Objective
Understanding strongly correlated phases of matter is a central goal of physics and is essential for applications ranging from condensed matter science to quantum information. A key example is the quantum spin liquid, an elusive phase predicted to emerge in frustrated spin systems. Quantum spin liquids exhibit long-range entanglement, fractionalized excitations, and topological order. These features not only make them of fundamental interest but also makes them promising for quantum technologies such as error correction codes and quantum memory.
Despite decades of study, experimental evidence for quantum spin liquids remains inconclusive. Indeed, creating such a phase requires generating long-range entanglement, which is notoriously difficult. Moreover, typical bulk measurements in solid-state physics cannot reveal the topological character of quantum spin liquids. Instead, one must probe their microscopic properties.
The Cavity–Quantum Spin Liquid project aims to tackle these challenges by developing new methods to prepare and study quantum spin liquids using single atoms trapped in an optical cavity. The project will be realized on a state-of-the-art apparatus combining single atoms in optical tweezers inside a high-cooperativity fiber cavity. We will first implement a protocol to generate robust long-range entanglement through cavity-assisted collective dissipation. Then, by extending techniques that allow programming arbitrary interaction graphs between individual atoms, we will work towards engineering quantum spin liquid states and characterizing them using the single-atom measurement toolbox.
Beyond advancing the understanding of quantum spin liquid phases, this project will establish new methods for preparing strongly entangled matter with optical cavities, broadening the scope of quantum simulation.
Fields of science (EuroSciVoc)
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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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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.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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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.
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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-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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(opens in new window) HORIZON-MSCA-2025-PF
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3400 Klosterneuburg
Austria
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