Objective
Quantum computation promises an exponential acceleration of certain computational tasks, most notably, the factorization of large numbers. One of the main schemes proposed for the realization of a quantum computer is linear optical quantum computation (LOQC). In this scheme, the quantum information carriers are photons, and the computation takes place by their propagation through optical devices that change their respective states, followed by the measurement of their final state.
For robust manipulation of the multi-photon states, integrated photonic circuits have been recently introduced. Up till now, however, all experimental demonstrations of multi-photon manipulation with these devices used up to four photons, due to the difficulty to create many identical photons at once.
This is since the current single-photons sources are all random, having success probabilities lower than one , and thus the probability of simultaneous emission of N such sources decays exponentially with N. The exponential speed-up promised by quantum computation algorithms is therefore canceled-out.
One way to overcome this could be the use of quantum-optical memories. These devices can store single photons for a pre-determined period of time. N such memories, storing N photons from one single-photon source, and releasing all of them at once, would constitute an N-photon source which rate is just N times slower than that of the single-photon source feeding it. In comparison to the use of N probabilistic single-photon sources in parallel, this constitutes an exponential improvement.
Here, we propose the development of a diamond-based, all-solid-state, room-temperature multi-photon source, composed of one single photon source and several single-photon memory units. This source could then feed a photonic circuit which will manipulate the photons into desired, highly correlated quantum states of light, the detection of which will enable scalable optical quantum computation.
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 computer hardware quantum computers
- natural sciences physical sciences theoretical physics particle physics photons
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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-2013-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
OX1 2JD Oxford
United Kingdom
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.