Objective
Quantum communication aims to transmit a quantum state (e.g. entangled states) between two distant locations.
Unfortunately, the losses during the transmission in optical fiber or in free space are detrimental to the entanglement and make direct practical implementation of long distances communication unrealistic.
In classical communication this problem can be solved using amplifiers but this approach is forbidden by quantum mechanics in most of the cases.
However the concept of quantum repeaters offers the possibility to solve this problem based on the idea that entanglement over a given distance can be created by entanglement swapping starting from two entangled pairs, covering only half the distance.
This method implies the ability to store a quantum state and thus requires the availability of long-lived quantum memory.
The long-term goal in the field is therefore to improve over the direct transmission rate using a quantum repeater approach.
Indeed, quantum memories have been demonstrated in several materials using various protocols, but the practical implementation is still a far reaching goal.
During this project, I will study two very promising protocols : the gradient-echo-memory (outgoing phase) and the atomic-frequency-comb memory (returning phase) with three different materials : hot atomic vapor, cold atoms, rare-earth crystals.
Time and space channels multiplexing are key features to improve over the direct transmission rate,therefore this project focuses on the temporal and spatial multimode behavior of these memories.
During the outgoing phase, I will build a gradient-echo-memory to store quantum correlated images.
This is expected to be the first demonstration of multispatial mode quantum memory.
During the returning phase depending of the experimental progress of the Geneva's group, I will work on temporal multiplexing and practical implementation of a quantum repeater, which fits perfectly within the European project leaded by the group : QuRep.
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.
- engineering and technology materials engineering fibers
- natural sciences physical sciences quantum physics
- natural sciences physical sciences optics fibre optics
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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-IOF
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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
1211 Geneve
Switzerland
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.