ATOMION

Exploring hybrid quantum systems of ultracold atoms and ions

Coordinatore	RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN    more Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie.
Nazionalità Coordinatore	Germany [DE]
Totale costo	1˙405˙000 €
EC contributo	1˙405˙000 €
Programma	FP7-IDEAS-ERC Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	ERC-2009-StG
Funding Scheme	ERC-SG
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-10-01   -   2014-09-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE  Organization address address: The Old Schools, Trinity Lane city: CAMBRIDGE postcode: CB2 1TN contact info Titolo: Ms. Nome: Renata Cognome: Schaeffer Email: send email Telefono: +44 1223333543 Fax: +44 1223332988	UK (CAMBRIDGE)	beneficiary	1˙022˙269.20
2	RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN  Organization address address: REGINA PACIS WEG 3 city: BONN postcode: 53113 contact info Titolo: Ms. Nome: Daniela Cognome: Hasenpusch Email: send email Telefono: +0049 228 737274 Fax: +0049 228736479	DE (BONN)	hostInstitution	382˙730.78
3	RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN  Organization address address: REGINA PACIS WEG 3 city: BONN postcode: 53113 contact info Titolo: Prof. Nome: Michael Karl Cognome: Koehl Email: send email Telefono: +49 228 730 Fax: +49 228 73	DE (BONN)	hostInstitution	382˙730.78

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 Obiettivo del progetto (Objective)

'We propose to investigate hybrid quantum systems composed of ultracold atoms and ions. The mutual interaction of the cold neutral atoms and the trapped ion offers a wealth of interesting new physical problems. They span from ultracold quantum chemistry over new concepts for quantum information processing to genuine quantum many-body physics. We plan to explore aspects of quantum chemistry with ultracold atoms and ions to obtain a full understanding of the interactions in this hybrid system. We will investigate the regime of low energy collisions and search for Feshbach resonances to tune the interaction strength between atoms and ions. Moreover, we will study collective effects in chemical reactions between a Bose-Einstein condensate and a single ion. Taking advantage of the extraordinary properties of the atom-ion mixture quantum information processing with hybrid systems will be performed. In particular, we plan to realize sympathetic ground state cooling of the ion with a Bose-Einstein condensate. When the ion is immersed into the ultracold neutral atom environment the nature of the decoherence will be tailored by tuning properties of the environment: A dissipative quantum phase transition is predicted when the ion is coupled to a one-dimensional Bose gas. Moreover, we plan to realize a scalable hybrid quantum processor composed of a single ion and an array of neutral atoms in an optical lattice. The third direction we will pursue is related to impurity effects in quantum many-body physics. We plan to study transport through a single impurity or atomic quantum dot with the goal of realizing a single atom transistor. A single atom transistor transfers the quantum state of the impurity coherently to a macroscopic neutral atom current. Finally, we plan to observe Anderson s orthogonality catastrophe in which the presence of a single impurity in a quantum gas orthogonalizes the quantum many-body function of a quantum state with respect to the unperturbed one.'