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Exploring Photon-photon Interactions with Cold Rydberg Atoms

Objective

"The requirements for the basic building blocks of Quantum Information Processing (QIP) are sometimes contradictory:
one must seek components that are immune to interactions to preserve their fragile quantum properties, and, at the same
time, to have strong, controllable interactions to perform operations on the quantum information they carry.

Different implementations using atomic, solid state or photonic systems have different strengths and weaknesses,
so there has been a growing interest in the study of hybrid systems, that combine different technologies to
implement those basic building blocks.

Photons are the best system to transfer quantum information, because they travel very fast (as fast as it is possible) and are virtually immune to losing their quantum properties; however, photon-photon interactions are very weak, and most materials only show nonlinearities at high photon numbers.

Recently, it has been shown that Rydberg atoms can mediate strong, controllable interactions between individual
photons, thus being an ideal system for QIP tasks. ""Exploring Photon-photon Interactions using Cold Rydberg Atoms"" (EPICA) is a project aimed at exploring the effective photon-photon interactions mediated by Rydberg atoms. The aims of this project are three:
– To combine Rydberg atoms with externally generated single-photons.
– To describe in a fundamental way dipole-dipole interactions in the context of multiple stored
photons in a highly interacting medium (Rydberg atoms).
– To apply this fundamental knowledge to implement basic building blocks for Quantum
Information Processing, such as two-photon gates, that could eventually work with single-photons
that can be entangled; or others such as a Fock state discriminator or a Fock state emitter."

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Topic(s)

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Funding Scheme

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MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

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(opens in new window) H2020-MSCA-IF-2014

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Coordinator

FUNDACIO INSTITUT DE CIENCIES FOTONIQUES
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 158 121,60
Address
AVINGUDA CARL FRIEDRICH GAUSS 3
08860 Castelldefels
Spain

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Region
Este Cataluña Barcelona
Activity type
Research Organisations
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Total cost

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.

€ 158 121,60
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