Objective
Inertial sensors using ultracold neutral atoms and atom interferometry techniques have demonstrated performances competing or even beating the more conventional light based interferometers. To further improve their sensitivity, quantum-non demolition (QND) detection schemes are presently investigated in order to engineer the initial state creating correlations between the atoms. Spin squeezed samples have been recently obtained, and it allowed to surpass the shot-noise detection limit. In this new regime the limit is set by the Heisenberg uncertainty principle, which states a 1/N ultimate signal-to-noise ratio. Implementing quantum limited atom interferometry will be a groundbreaking achievement, opening the door to many new advances in terms of both scientific discoveries and technological applications. The proposal merges atom interferometry and QND measurements with cavity cooling quantum electrodynamics (QED), in order to exploit the high degree of control of the atom-radiation interaction. A high finesse cavity will serve both to confine the atomic ensemble with an optical dipole trap, eventually reaching Bose-Einstein Condensation (BEC), and to develop new schemes of QND detection taking advantage of the gain factor provided by the cavity. The ultracold atomic sample will then be levitated against gravity with a sequence of coherent vertical momentum transfers, obtained by periodically shining the freely-falling atoms with phase-locked Raman beams. Keeping the resonance condition for the number of atoms versus time results in the determination of the gravity acceleration, and the measurement will be non-destructive. Finally the gravimeter will be loaded with a squeezed atomic sample, obtained through a QND measurement. Sub--shot--noise sensitivity approaching the Heisenberg limit should then be achieved for the interferometer, whereas a QND detection scheme will allow continuous readout interferometry.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering sensors
- natural sciences physical sciences condensed matter physics bose-einstein condensates
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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.
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-IEF-2008
See other projects for this call
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.