Data-Gouv-ML/pcri-actions-marie-curie-participations-et-projets-laureats huggingface dataset:
Projet Glueballs at BESIII (Horizon 2020, appel à projets 2019)
Action : Postdoctoral Fellowships - Global Fellowships
Panel : Physics
Statut du projet : SIGNED

We propose to search for the scalar glueball, an exotic particle consisting entirely of the gauge bosons of the strong interaction, the gluons, using ten billion decays of the charmonium state J/psi recently accumulated with the BESIII experiment. The existence of glueballs has been predicted by the theory of the strong interaction, quantum chromodynamics (QCD), four decades ago. Yet, to date there has not been experimental evidence. Exploiting the unprecedented statistics of the BESIII experiment in combination with modern day high performance computing, we aim to uncover the glueball in a complex coupled channel amplitude analysis of J/psi decays into final states containing a vector particle and two pseudoscalar mesons. While radiative decays present a favourable, gluon-rich environment, massive vector mesons act as a flavour filter for an intermediate scalar resonance that subsequently decays to the two pseudoscalar mesons. Combining the information from these different decay channels in a coupled channel amplitude analysis will allow us to investigate the glueball components of the five established scalar states and by this the existence of the glueball itself. Our proposed work will, thus, address one of the pressing questions of QCD. To achieve our goal, we will develop a framework combining state-of-the-art amplitude analysis in K-matrix formalism with high performance computing on graphics processing units and will furthermore strongly collaborate with the Joint Physics Analysis Center hosted at Indiana University. The knowledge acquired during the outgoing phase, regarding the physics topic of the proposal, advanced aspects of amplitude analysis and a general purpose, high performance computing framework for such studies will be transferred back to Europe during the returning period. It will directly benefit ongoing research efforts at Johannes Gutenberg Universität Mainz as well as upcoming particle physics experiments like PANDA at FAIR hosted in Europe.

Mots clés : hadron spectroscopy, partial wave analysis, charmonium decays, exotic states, strong interaction, scalar meson, glueball, k matrix formalism, coupled channel analysis, gpu computing, besiii experiment

Participants :
- Johannes Gutenberg University Mainz (Allemagne) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 246669.12 €
- Indiana University (Etats-Unis) — Partner, organization partner, Enseignement supérieur ou secondaire, subvention : 0.0 €
Projet fracton (Horizon 2020, appel à projets 2020)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Physics
Statut du projet : CLOSED

We propose to study a novel class of quantum phases of matter -- so-called `Fracton' phase of matter, whose quasiparticle excitations, known as sub-dimensional particles, have restricted mobility or kinetic motions. Fracton phases emerge from a rich interplay of correlations, symmetry, topology, and dynamics in strongly interacting many-body systems. These exotic phases extend and challenge our existing notions of topological order and have attracted broad interdisciplinary interest including topological physics, quantum field theory, gravity, quantum information, and elasticity theory. This proposal aims to build an effective field theory framework to classify, characterize, simulate, and detect distinct fracton phases and search for potential application of fracton for quantum memory and quantum computing both at equilibrium and in dynamical processes. We will apply a multidisciplinary approach combining the latest advances in quantum field theory, quantum information, and condensed matter to design new characterization tools to reveal exotic features of fracton dynamics, explore the microscopic realization of fracton physics and seek new experimental fingerprints to probe these phases. Our research will gravitate around the important question of how dynamical constraints and higher-moment conservation law can engender new types of quantum matter or critical points, and how constraint motion of the quasiparticle can engender robust information storage at intermediate time-scales in quantum many-body systems. We expect the research outcome can expand our understanding of new types of quantum phenomena with constraint dynamics, and shed light for investigating how strong interactions can potentially help identify promising platforms for quantum information storage and processing.

Mots clés : fracton, topological order, fractionalization, strongly correlated system, emergent gauge theory, quantum entanglement, thermalization

Participants :
- University of Oxford (Royaume-Uni) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 212933.76 €
Projet GalaxyDance (Horizon 2020, appel à projets 2016)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Physics
Statut du projet : CLOSED

We propose to use information encoded in peculiar velocity statistics of galaxies in the Local Universe as well as observed redshift space distortions (RSD) of distant galaxies for rendering new and very precise constraints on the validity of General Relativity (GR) and competing theories of modified gravity (MG) on cosmological and intergalactic scales. The main objectives and deliverables of our proposed research programme are: -To obtain precise modeling of both GR and MOG signatures in galaxy velocity field; -To develop self-consistent models of RSD for a wide class of MOG models; -To study the systematic impact of baryonic physics on velocity and clustering observables; -To perform a robust comparison of the predicted and observed velocity and RSD signal; -To compare cosmological parameters estimated using separately both methods; We plan to conduct our studies on GR and MG by developing methods proposed by us in previous works. For this goal it is necessary to develop a self-consistent RSD theory for MG. We will put emphasis here on the construction of theoretical models for anisotropic 2-point statistics, that will in a precise way model relations between theoretical quantities and observed ones. As a complementary probe and an important consistency test we plan to model and measure from observations 2-point correlation statistics of radial components of galaxy peculiar velocities. Our project, aimed at using galaxy velocities to test GR and MG theories on cosmological scales, will produce significant and crucial research deliverables that are necessary to fully exploit the new possibilities that the rapidly approaching era of big cosmological data will offer.

Mots clés : theory of gravity, peculiar velocities, redshift space distortions

Participants :
- Polish Academy of Sciences (Pologne) — Coordinator, beneficiary, Recherche, subvention : 146462.4 €
Projet SCCD (Horizon 2020, appel à projets 2016)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Mathematics
Statut du projet : CLOSED

We study group actions on C*-algebras from a structure and classification point of view, importing concepts from the Elliott classification program into the equivariant context. The challenge is to advance the structure theory for natural classes of actions of amenable groups on C*-algebras. In a similar vein, we shall consider flows on C*-algebras, which are the mathematical abstractions of time evolutions. The objectives of this proposal are: A: Establish an Ocneanu-type rigidity result for actions of amenable groups on strongly self-absorbing C*-algebras as well as the automatic tensorial absorption of such actions under natural conditions. B: Obtain an equivariant version of the KK-theoretic stable uniqueness theorem à la Lin-Dadarlat-Eilers. C: Study the rigid behavior of flows on Kirchberg algebras with the Rokhlin property, in order to solve a long-standing open problem set out by Kishimoto. We also consider other natural classes of flows without the Rokhlin property, the projected classification of which will solve open problems such as Robert's conjecture and part of the Toms-Winter conjecture. The solution to this challenge employs equivariant generalizations of important classical concepts like strong self-absorption, W*-bundles, KK-theory, and combines these with known concepts like Rokhlin dimension in an innovative way. The projected results are ground-breaking for the field of C*-algebras, and the methods to obtain them go well beyond the state-of-the-art. The projects are chosen to maximize the transfer of knowledge between the ER and the supervisor. Taking into account the excellent opportunities for professional training and public engagement provided by the University of Aberdeen as well as the other suggested activities described in the proposal, the MSC IF will have a substantial impact on the ER’s career, qualifying him for a permanent position at a research-driven institution after completing the fellowship.

Mots clés : c  algebras, group actions, c  dynamics, flows, one parameter automorphisms

Participants :
- University of Copenhagen (Danemark) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 200194.8 €
Projet Certywhere (Horizon 2020, appel à projets 2020)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Information Science and Engineering
Statut du projet : CLOSED

We trust computers with our lives: they steer our aircrafts, control cardiac pacemakers, insulin pumps, ventilators, and other medical devices, and will soon drive our cars. All these software systems are safety critical: an error in the software may lead to a catastrophe such as the loss of life or the explosion of a rocket. Unfortunately, safety-critical systems have been plagued by fatal software failures from their early days until today. In computer science, verification is the discipline of constructing software and systems that are correct by design. It proves that a computer system works correctly under all given circumstances with mathematical rigor. As real software is far too complex to be analyzed by hand, today, verification itself uses computers to get the job done, i.e. it is understood to be computer-aided verification. With this, the following question immediately arises: If we use a piece of software, say, the verifier, to guarantee that another computer system works correctly, how can we trust the result of the verification process if the verifier itself could have a bug? In my opinion, this is an extremely important question to answer if we are serious about applying computer-aided verification to real-life safety-critical systems. However, surprisingly little has been done to answer it. The goal of Certywhere is to significantly advance the state-of-the-art on this question by marrying the two popular verification methods of automated model checking and interactive theorem proving by means of certification. In this approach, model checkers produce certificates, which can be efficiently checked against the model and formula by an independent formally verified certifier. I want to apply the certification approach to a large range of model checking methods from the important areas of symbolic model checking and partial-order reduction. In particular, I want to target timed automata, which are a popular formalism for verifying real-time systems.

Mots clés : certification, model checking, timed automata, interactive theorem proving, isabelle

Participants :
- Aarhus University (Danemark) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 207312.0 €
Projet DecodePL (Horizon 2020, appel à projets 2015)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Life Sciences
Statut du projet : CLOSED

We usually think that as we emerge from childhood, our brains become less plastic, making learning effortful and highly specific. Recent findings however challenge this view, suggesting that even adult perceptual learning (PL), often considered the most specific form of learning, has the potential to generalize across training conditions. This questions classical theories positing that PL changes encoding in early sensory areas, as the functional properties of these areas cannot account for generalization. Building on recent computational models, I propose instead that PL relates to decoding, that is, how information from sensory areas is communicated and read out by higher areas to make decisions, because readout weights can be more flexibly adjusted and accommodate generalization. Decoding accounts are theoretically attractive yet technically challenging to test, as they require a multiscale brain investigation, i.e., tracking PL across networks, areas, and single neurons. I will address these theoretical and technical challenges by capitalizing on a recent innovation combining noninvasive neuroimaging with electrophysiological recordings while monkeys learn a discrimination task. This approach will allow for the first time to create a comprehensive map of brain areas involved in PL in monkeys, determine the involvement of connectivity changes to PL, and unravel the computations that the neurons in these specific areas perform. This project, at the intersection of neuroscience, psychology and computational theory, will set forth the foundations for a mechanistic investigation of PL at an unprecedented level of detail, bridging multiple scales from whole-brain networks down to single neurons, and will therefore allow me to start a competitive scientific career as an independent researcher. Ultimately, this innovative framework will help us understand the building blocks of adult brain plasticity, and how to optimize rehabilitation and educational applications.

Mots clés : perceptual learning, macaque monkey, fmri guided electrophysiology, decoding, decision making

Participants :
- Universitätsmedizin Göttingen (Allemagne) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 171460.8 €
- Leibniz Association (Allemagne) — Partner, beneficiary, Recherche, subvention : 0.0 €
Projet SYNCAT (Horizon 2020, appel à projets 2014)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Chemistry
Statut du projet : CLOSED

We will develop new dual catalytic reactions based on the complementary reactivity of gold (I) and other transition metals. We will perform well developed gold-catalysed isomerisation reactions and intercept carbenoid intermediates through a transmetallation event with a more redox active metal such as palladium (0). Following this the resulting palladium carbenoid will perform a variety of cross-coupling reactions including: dimerisations, C-X insertions and C-H insertions. This approach has not been reported previously and would provide new reactions and disconnections for the synthetic chemist. This project will be delivered by Dr Tapas Ghosh, a highly experienced and accomplished researcher currently working at Izmir Institute of Technology, Turkey.

Mots clés : gold, dual catalysis, rearrangements, cross couplings

Participants :
- Queen's University Belfast (Royaume-Uni) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 195454.8 €
Projet ACOSE (Horizon 2020, appel à projets 2020)
Action : Postdoctoral Fellowships - Global Fellowships
Panel : Mathematics
Statut du projet : SIGNED

We will investigate the algorithmic complexity of mathematical structures and its connection with notions of complexity studied in descriptive set theory at. The main subject area of the planned research is computable structure theory — an area of logic concerning itself with the computational complexity of countable mathematical structures. Mathematicians usually consider structures up to some equivalence relation. For example, a number theorists works in the standard model of arithmetic, the natural numbers with addition and multiplication, but it is of little interest to him whether he works in the canonic representation or in some isomorphic copy as this does not impact his work. However, for computational matters the choice of representation is highly important. Therefore one usually measures the algorithmic complexity of a structure by its degree spectrum, the set of Turing degrees of structure equivalent to the structure under a given equivalence relation. Degree spectra are the main subject of investigation in computable structure theory. A natural way to think of degree spectra is as sets of subsets of the natural numbers, and these sets are studied in descriptive set theory. So far the relation between the descriptive complexity of a set and whether it can be a degree spectrum under a given equivalence relation has been overlooked. The goal of this project is to relate the descriptive complexity of sets with their realizability as degree spectra under some equivalence relation. We plan to obtain new results and develop new techniques which will be beneficial to both descriptive set theory and computable structure theory and hope to form a lasting connection between those fields. The fellowship will be carried out over 36 months, 24 months at the University of California, Berkeley under supervision of Prof. Antonio Montalbán and 12 months at TU Wien under the supervision of Professors Ekaterina Fokina and Matthias Baaz.

Mots clés : computability theory descriptive set theory

Participants :
- TU Wien (Autriche) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 252349.44 €
- University of California System (Etats-Unis) — Partner, organization partner, Enseignement supérieur ou secondaire, subvention : 0.0 €
Projet We-R (Horizon 2020, appel à projets 2019)
Action : Postdoctoral Fellowships - Global Fellowships
Panel : Social Sciences and Humanities
Statut du projet : SIGNED

We-R focuses on the important relationship between collective memory and national identity by introducing a ground-braking perspective: the study of the Constitution as a lieu de mémoire. We-R’s aims are to understand how and to what extent contemporary Constitutions may be used as tools for bringing the past in the present, and analyze the ways in which configurations of memory and identity through the Basic Law of the Land can obstruct reconciliation and democratization processes in culturally heterogeneous societies. In addressing this topic, the researcher will use the Western Balkans (including Slovenia, Croatia, Bosnia-Herzegovina, Serbia, Montenegro, Macedonia, and Kosovo) as case studies and an innovative interdisciplinary perspective which will integrate in comparative constitutional law memory studies and nationalism studies, as well as a multi method approach that combines comparative analysis with critical political discourse analysis and social media research. The proposed mobility plan will allow the researcher’s training at CU to reinforce her knowledge in Balkan studies and acquire new methodological skills, and the residence at Eurac to elaborate the first existing “Practical Guidelines of Democratic Memory Construction” (DeMeCon). Given the importance of its objectives We-R is potentially entitled to become a reference model for other comparable case studies. The action will let the researcher benefit from interactions with an international network of excellence composed of scholars in various fields, international and national policy-makers and watchdog organizations. We-R comes appropriately timed, in a moment in which nationalism and historical revisionism are growing in Europe and beyond and are threating the future of the EU project.

Mots clés : cultural study of the constitution, constitutional memory, memory laws, memory politics, balkan studies, nationalism, divided societies, reconciliation, democratization, eu cultural integration

Participants :
- Columbia University (Etats-Unis) — Partner, organization partner, Enseignement supérieur ou secondaire, subvention : 0.0 €
- European Academy of Bolzano (Italie) — Coordinator, beneficiary, Recherche, subvention : 251002.56 €
Projet DDRDegronDiscovery (Horizon 2020, appel à projets 2020)
Action : Postdoctoral Fellowships - European Fellowships
Panel : Life Sciences
Statut du projet : CLOSED

Weak and transient protein-protein interactions are essential for cellular homeostasis but are challenging to study and therefore incompletely understood. Many of these interactions involve globular domains that recognize a short linear motif (SLiM) in disordered regions of interacting proteins. E3 ubiquitin ligases frequently use this principle of interaction to recognize their substrates. The conjugation of ubiquitin chains to a substrate often serves as a signal for degradation by the proteasome, and the recognized SLiM is therefore referred to as a degron. The ubiquitin system has a well-established critical function in genome stability maintenance, which is of fundamental importance for avoiding severe diseases such as cancer. A number of E3 ubiquitin ligases have key roles in promoting DNA damage signaling and repair pathways, but mechanistic insights into how these ubiquitin ligases recognize their substrates are lacking. This is due in large part to an absence of sensitive methods for discovery and characterization of transient E3 ligase-degron interactions. Here, I propose to apply and combine two novel methods in an innovative workflow to remedy this knowledge gap. I will use a powerful and highly sensitive novel protein-protein interaction mapping technique (SPARK2) to screen peptides derived from the disordered proteome for their interaction with E3 ligases important for genome stability maintenance. Detailed characterization of identified potential SLiMs interacting with DNA damage-responsive E3 ligases will subsequently be performed using MRBLE:pep, a novel multiplexing approach to simultaneously quantify dozens of protein-peptide affinities that I recently helped to develop. This in-depth characterization of E3 ligase degrons, together with functional studies of validated novel E3 ligase-substrate interactions, will enable unprecedented mechanistic insights into regulatory networks underlying genome stability maintenance.

Mots clés : slim, degron, protein protein interaction, ubiquitin, multiplex assay

Participants :
- University of Copenhagen (Danemark) — Coordinator, beneficiary, Enseignement supérieur ou secondaire, subvention : 207312.0 €