Project description
Quantum-optical, topologically ordered many-body states
Wave interference produced by the interaction of light with dense, regular arrays of atoms can lead to strong collective emission. This can dramatically improve the efficiency of single-photon-level applications. With the support of the Marie Skłodowska-Curie Actions programme, the QUINTO project aims to investigate such systems in the realisation of quantum many-body states featuring topological order. Topological order is a phenomenon of relevance to a wide range of topics from fault-tolerant quantum computing to the emergence of exotic fundamental properties. QUINTO intends to provide new ways of creating, understanding and measuring topologically ordered states in many-body quantum optics by leveraging innovative theoretical and numerical techniques.
Objective
Atom-light interfaces are vital for a range of potential applications in the coming “second quantum revolution”, from secure communication to ultra-precise sensors to quantum computers. A new exciting possibility is to arrange atoms in dense, regular arrays, where wave interference leads to strong collective emission. This property has been shown to polynomially or even exponentially improve the efficiency of single-photon-level applications. A frontier still awaiting a breakthrough is in the many-body regime, in particular, to expand the realm of atom arrays interacting with light toward realizing and studying exotic strongly correlated behavior.
In QUINTO (Quantum INteracting Topological Optics), we will propose routes by which such systems can realize many-body states featuring topological order (TO). TOs have attracted significant interest due to wide-ranging implications ranging from possible fault-tolerant quantum computing to surprising fundamental properties such as the emergence of “anyonic quasi-particles” (being neither bosons nor fermions) and emergent lattice gauge theories. We will use the known physics of TOs within condensed matter physics as a “window” to developing the concept of many-body quantum optics, and show that, in turn, the arrays provide new ways of creating, understanding and measuring TOs.
We will employ innovative, condensed-matter-inspired theoretical and numerical techniques, breaking state-of-the-art limitations (e. g. on system size), to study two routes towards quantum-optical TOs: arrays in optical cavities and “topological bands” in free-space arrays. We aim to: (i) demonstrate that long-range interactions, induced by emission and re-absorption of photons, provides a new paradigm for inducing TOs, (ii) elucidate the influence of such interactions on fundamental TO physics, and (iii) show that the output light carries information sufficient to detect a TO (including signatures of anyons).
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.
- natural sciences physical sciences condensed matter physics quasiparticles
- natural sciences physical sciences theoretical physics particle physics fermions
- social sciences political sciences political transitions revolutions
- natural sciences physical sciences optics
- natural sciences physical sciences theoretical physics particle physics photons
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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)
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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-2023-PF-01
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08860 Castelldefels
Spain
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