SQUIRREL

Sensing Quantum Information Correlations

Coordinatore	UNIVERSIDAD AUTONOMA DE MADRID    more  Organization address address: CALLE EINSTEIN, CIUDAD UNIV CANTOBLANCO RECTORADO 3 city: MADRID postcode: 28049 contact info Titolo: Ms. Nome: Mª Carmen Cognome: Puerta Email: send email Telefono: +34 91 497 8479 Fax: +34 91 497 5269
Nazionalità Coordinatore	Spain [ES]
Totale costo	86˙685 €
EC contributo	86˙685 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2013-IEF
Funding Scheme	MC-IEF
Anno di inizio	2014
Periodo (anno-mese-giorno)	2014-03-01   -   2015-02-28

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSIDAD AUTONOMA DE MADRID  Organization address address: CALLE EINSTEIN, CIUDAD UNIV CANTOBLANCO RECTORADO 3 city: MADRID postcode: 28049 contact info Titolo: Ms. Nome: Mª Carmen Cognome: Puerta Email: send email Telefono: +34 91 497 8479 Fax: +34 91 497 5269	ES (MADRID)	coordinator	86˙685.30

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 Obiettivo del progetto (Objective)

'Quantum correlations are those supporting technologies such as quantum information processing. For realistic applications, one has to consider open quantum systems, that is, in contact with the classical world through lifetime and excitation. Quantum correlations are transferred through emitted photons, electrons, etc. and characterise the quantum structure of the system and its suitability as a quantum device. The state-of-the-art is the Hanbury Brown-Twiss two-photon counting, which is a particular case of the general problem.

At the speed of technological progress, it is now becoming possible to measure higher order correlations of quanta characterised in all their attributes. For instance, cross-correlating photons with fixed frequencies and arrival times is now a routine practice in most laboratories worldwide. The correct interpretation and mastering of such techniques will allow a robust implementation of quantum protocols.

Theoretically, the computation of such correlations is extremely complicated and tedious as it needs to keep in the calculation all the degrees of freedom for each carrier. I have recently developed a general formalism, called 'the sensing method', conceptually transparent and improving computations by several orders of magnitude as compared to the previous methods. This allows to deal for the first time with complicated quantum systems, with many degrees of freedom and particles, and to compute Nth-order correlations, with N>2, at arbitrary times and frequencies.

The goal of the SQUIRELL project is to develop and disseminate this novel and interdisciplinary theoretical approach in a wide range of quantum systems (cavity QED, superconducting circuits, atomic and semiconductor systems, plasmonic, Bose-Einstein condensates, etc.), by analysing the physics made accessible by the sensing method, by supporting experiments on quantum correlations in a variety of fields and by exploiting correlations to improve and design new quantum devices.'