Objective
A Bose-Einstein Condensate (BEC) in chromium (Cr) has been created recently. Compared to other species, Cr has two assets: it can be used for lithography, and, due to its large magnetic moment, the long-range, anisotropic magnetic dipole-dipole interaction (MDDI) is comparable to the contact interaction usually at work in standard BECs. MDDI is of general interest as it provides the cold atoms community with a new tool in the interdisciplinary field of quantum engineering. MDDI is intermediate between the contact interaction encountered in atomic physics, and the Coulomb interaction present in condensed-matter systems. MDDI provides a way to study, in a clean model system with tuneable parameters, fundamental problems arising in solid-state physics, such as quantum magnetism or spintronics.
In this project, we plan to study experimentally the new BEC properties arising from the MDDI. A Cr condensate is the only system so far in which such phenomena can be observed. We will first study the dependence of the condensate stability on the trap geometry. Then, the excitations of the condensate will be studied: we will measure the excitation spectrum, in which a roton minimum (similar to the one in liquid He) has been predicted. For such studies, tuning short and long-range interactions (with Feshbach resonance and rotating magnetic fields, respectively) is crucial. In a second step, we plan to engineer new, highly correlated quantum states of matter, by loading the Cr BEC into an optical lattice.
The interplay between contact interaction, MDDI, and tunnelling induces a wealth of unexplored quantum phases, such as super-solid or `checkerboard ones. The project lies in a highly competitive research field, at the border between atomic and condensed-matter physics, and will therefore contribute to the excellence of European research. It will also highly improve to my professional maturity by allowing me to broaden my experimental and theoretical skills.
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 chemical sciences inorganic chemistry transition metals
- natural sciences physical sciences atomic physics
- natural sciences physical sciences electromagnetism and electronics spintronics
- natural sciences physical sciences condensed matter physics solid-state physics
- natural sciences physical sciences condensed matter physics bose-einstein condensates
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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.
FP6-2005-MOBILITY-5
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Funding Scheme
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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.
Coordinator
STUTTGART
Germany
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.