Quantum Simulation of Many-Body Physics in Ultracold Gases


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 Nazionalità Coordinatore Germany [DE]
 Totale costo 1˙489˙414 €
 EC contributo 1˙489˙414 €
 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-2012-StG_20111012
 Funding Scheme ERC-SG
 Anno di inizio 2013
 Periodo (anno-mese-giorno) 2013-03-01   -   2018-02-28


# participant  country  role  EC contrib. [€] 

 Organization address address: GESCHWISTER SCHOLL PLATZ 1
postcode: 80539

contact info
Titolo: Mr.
Nome: Steven
Cognome: Daskalov
Email: send email
Telefono: +49 89 2180 6941
Fax: +49 89 2180 2985

DE (MUENCHEN) hostInstitution 1˙489˙414.00

 Organization address address: GESCHWISTER SCHOLL PLATZ 1
postcode: 80539

contact info
Titolo: Prof.
Nome: Lode Corneel
Cognome: Pollet
Email: send email
Telefono: +49 89 21804593
Fax: +49 89 218016583

DE (MUENCHEN) hostInstitution 1˙489˙414.00


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

optical    monte    model    bosonic    physics    lattice    experiments    cold    carlo    light    material    quantum    gas    atoms    models    interactions    regimes    gases    recent    numerical    intractable    diagrammatic    become   

 Obiettivo del progetto (Objective)

'Ultracold atoms in an optical lattice constitute a clean, controlled and tunable implementation of many intractable models in condensed matter physics. In the long run, cold gas experiments may act as quantum simulators and shed new light on those models, and tell us to what extent the real material is described by the model. The prerequisite is, however, that those experiments are benchmarked and validated against models with known results. A lot of recent attention was therefore devoted to the quantitative analysis of these experiments: we have shown for instance that interference patterns for bosonic gases in an optical lattice can be in one-to-one agreement with quantum Monte Carlo simulations. In recent years, as the many-body physics has become more apparent, the numerical component in explaining cold gas experiments has grown stronger. Unfortunately, no numerical methods exist today that can control the answer in the new parameter regimes that gradually become accessible in cold gas experiments.

In this proposal we want to develop novel diagrammatic quantum Monte Carlo methods aiming at controlled answers for intractable models in parameter regimes relevant for cold atoms. By a combination of cluster dynamical mean-field theory and diagrammatic Monte Carlo we will investigate the Hubbard model in the pseudo-gap regime. For fermions with long-range interactions such as dipolar and Coulombic systems, diagrammatic Monte Carlo will also be developed. This can have far reaching consequences for high Tc superconductors, exchange functionals and material science. Sideprojects in this proposal include the study of spinor bosonic systems in higher dimensions, bosonic polar molecules with anisotropic interactions in different geometries, polaronic effects in cold gases, and circuit quantum electrodynamics, where the strong light-matter coupling opens a different avenue for quantum simulation, but with its own challenges.'

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