Objective
In this application, we propose to study the physics of the polaronic gas. In a spin imbalanced Fermi gas, that is with a larger number of spin up particles than with spin down, the usual Cooper pairing scenario no longer applies, and this raises the question of the possible phases of the system. It was recently proposed by C. Lobo et. al. [PRL 97, 200403 (2006)], that in the strong imbalanced regime the minority atoms dressed by the Fermi sea of the majority atoms form a weakly interacting gas of quasi-particles called polarons.
Whereas the basic one-body properties of these polarons seem to be quite well understood the interaction between polarons is still a debated issue, but crucial in order to understand the many-body properties of the polaronic gas. We therefore propose to study the polaronic interaction problem in homogeneous polarized Fermi gases, and its extension to optical lattices.
We will tackle the problem in two different ways: (i) directly addresses the scattering problem of two finite momentum polarons with a variational approach, or with a Green’s function approach, (ii) addresses the many-body properties of the polaronic gas assuming that the p-wave scattering volume of two polarons is obtained from the first step..
Allowing the applicant to be hosted at the ENS (Paris), would give him the possibility to work in a different geographical and working environment from the one in which he has already worked before. The excellence of the host institution, which has been playing at international level a leader in the experiments on strongly interacting fermions, and in the theory of polarons, together with the vanguard of the project, provide the fellow with a good training, and open the way to a position of professional maturity.
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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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.
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.
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.
FP7-PEOPLE-2011-IEF
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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.
Coordinator
75794 PARIS
France
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.