Project description
Inducing unprecedented superfluidity with a novel 2D ultracold atomic gas system
The discovery that helium flows without resistance through very thin tubes was made more than a century ago, as was the discovery that electricity flows through some metals with no resistance. Since then, quantum mechanics has supported advances in our theoretical and experimental understanding of superfluidity and superconductivity. Two-dimensional (2D) systems appear to be a sort of boundary with dimensions above and below behaving differently from a classical and quantum perspective. With the support of the Marie Skłodowska-Curie Actions programme, the ToPIKS project is hoping to experimentally observe and characterise a kind of superfluidity never before seen with the help of a novel 2D ultracold atomic gas system.
Objective
Topological P-wave superfluids with Isotopic K mixtureS:
Pairing of fermions lies at the heart of superfluidity and superconductivity, paradigmatic many-body phenomena arising at all energy scales in Nature – from ultracold to Quark matter. In particular, pairing between fermions with non-zero angular momentum emerges as a key mechanism at the basis of a wealth of unconventional fermionic superfluids, as for the A phase in 3He or electrons in high-Tc superconductors. More specifically, p-wave pairing in 2D is expected to induce superfluid phases with non-trivial topological features, as chirality and anyonic vortex excitations with non-Abelian braiding statistics.
The high level of control over the system parameters, together with detection and probing capabilities down to the single atom level, makes of ultracold atomic gases an ideal platform towards the realization and investigation of such paradigmatic yet elusive strongly interacting phases. Despite this, the experimental observation of p-wave superfluidity in atomic gases has never been achieved so far.
ToPIKS plans to realize a 2D system with strong p-wave interactions in ultracold Bose-Fermi mixtures of 39K and 40K atoms, on the repulsive side of a Fose-Bose s-wave Feshbach resonance, where the system sustains a heteronuclear fermionic molecular state. The virtual exchange of the lighter 39K bosonic atoms between two 39K40K molecules will in turn induce an effective dimer-dimer p-wave attraction.
The key novelty of this approach consists in the possibility to stabilize the system against inelastic losses by promoting a small but finite Bose-Bose repulsion. This is a striking advantage in comparison with previously existing systems exploiting homonuclear p-wave Feshbach resonances, intrinsically suffering from strong 3-body recombination. At the same time, the system maintains the high degree of controllability of atomic gases with Feshbach tunable interactions.
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 theoretical physics particle physics fermions
- natural sciences physical sciences condensed matter physics quantum gases
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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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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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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.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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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) H2020-MSCA-IF-2020
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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.
08860 Castelldefels
Spain
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.