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Strongly Interacting Mass Imbalanced Superfluid with ultracold fermions

Total Cost €


EC-Contrib. €






 SIMIS project word cloud

Explore the words cloud of the SIMIS project. It provides you a very rough idea of what is the project "SIMIS" about.

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Project "SIMIS" data sheet

The following table provides information about the project.


Organization address
address: INNRAIN 52
postcode: 6020

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Austria [AT]
 Total cost 174˙167 €
 EC max contribution 174˙167 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2019
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2020
 Duration (year-month-day) from 2020-07-01   to  2022-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAET INNSBRUCK AT (INNSBRUCK) coordinator 174˙167.00


 Project objective

Superfluids violate our classical intuition, provoking many intriguing questions in modern condensed matter physics. In particular, superfluid phases with non-standard pairing mechanisms, which play an essential role in diverse physical systems including high-Tc superconductivity, have attracted great interests, and the underlying principles challenge our understanding. Ultracold atomic systems have emerged as an ideal testbed for simulating such many-body states by directly comparing theories with experiments. Recently, the host group has achieved a novel mass-imbalanced Fermi-Fermi mixture, which offers unprecedented opportunities to realize unusual superfluid phases. Here, we propose experimental studies on unconventional superfluidity by exploiting the excellent controllability in our new quantum system. Mass imbalance changes how the two Fermi surfaces overlap, causing the pairs to have finite momentum and resulting in a rich phase diagram. We aim to explore many-body phases appearing in a mass-imbalanced Fermi-Fermi mixture near the strongly interacting limit. To demonstrate superfluidity, we will probe the atoms by magnetic and optic methods, which allow distinguishing between pairs and unpaired atoms. Moreover, we will investigate the superfluid shell structure in a trapped system to characterize the phase diagram and the thermodynamic properties in the strongly interacting regime, based on tomographic imaging. Finally, we plan to extend our methods to search for exotic forms of superfluidity such as supersolid or gapless phases. Our research will open a new chapter of condensed-matter simulation with ultracold atoms by providing a unique platform to study unconventional superfluidity. The successful demonstration will have strong impact on the scientific community even beyond the field of quantum gases. The techniques applied in this project can be further developed to address many other interesting topics such as impurity physics and transport dynamics.

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The information about "SIMIS" are provided by the European Opendata Portal: CORDIS opendata.

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