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Exploring topological matter with atomic Dysprosium

Total Cost €


EC-Contrib. €






 TOPODY project word cloud

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

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Project "TOPODY" data sheet

The following table provides information about the project.


Organization address
address: 45, RUE D'ULM
city: PARIS CEDEX 05
postcode: 75230

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 France [FR]
 Total cost 1˙500˙000 €
 EC max contribution 1˙500˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-STG
 Funding Scheme ERC-STG
 Starting year 2018
 Duration (year-month-day) from 2018-01-01   to  2022-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ECOLE NORMALE SUPERIEURE FR (PARIS CEDEX 05) coordinator 1˙500˙000.00


 Project objective

Recently, topology stepped in an increasing number of areas in physics, including via the concept of topological phases of matter. In strongly interacting systems, topological phases may exhibit intricate quantum entanglement between their constituents, leading to fascinating physical properties, such as the emergence of anyons. Since the discovery of fractional quantum Hall states in 1982, the scientific community is awaiting further experimental advances: new types of strongly correlated states, observation/manipulation of anyons. In this field, ultracold atoms promise novel approaches with a specific degree of control. Yet, despite the recent creation of weakly interacting topological states with atomic gases, reaching the strongly correlated regime, with long-range quantum entanglement, remains an open challenge. In TOPODY, I will use a novel approach to produce strongly correlated topological states with microscopic samples of atomic Dysprosium. The envisioned laboratory experiment will combine state-of-the-art techniques, such as single-atom detection or laser-induced spin-orbit coupling. It will allow preparing quantum gases subjected to artificial gauge fields beyond the previously accessible regimes. The project will focus on realizing two paradigmatic physical systems – the Laughlin state and a topological superfluid. 1. We will create the Laughlin state by injecting a controlled amount of angular momentum using optical transitions with finely-shaped laser beams. We will infer distinctive features of the Laughlin state – incompressibility and atom anti-bunching – from the distribution of atom positions. 2. We will produce strongly interacting Fermi gases in one dimension and subjected to a spin-orbit coupling, leading to a topological superfluid state. The topology will manifest itself by the presence of Majorana bound states, which are quantum states delocalized between the two ends of the system, and accessible using quasi-particle spectroscopy.


year authors and title journal last update
List of publications.
2018 Thomas Chalopin, Vasiliy Makhalov, Chayma Bouazza, Alexandre Evrard, Adam Barker, Maxence Lepers, Jean-François Wyart, Olivier Dulieu, Jean Dalibard, Raphael Lopes, Sylvain Nascimbene
Anisotropic light shift and magic polarization of the intercombination line of dysprosium atoms in a far-detuned dipole trap
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.98.040502
Physical Review A 98/4 2019-09-04
2018 Thomas Chalopin, Chayma Bouazza, Alexandre Evrard, Vasiliy Makhalov, Davide Dreon, Jean Dalibard, Leonid A. Sidorenkov, Sylvain Nascimbene
Quantum-enhanced sensing using non-classical spin states of a highly magnetic atom
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-07433-1
Nature Communications 9/1 2019-09-04
2019 Alexandre Evrard, Vasiliy Makhalov, Thomas Chalopin, Leonid A. Sidorenkov, Jean Dalibard, Raphael Lopes, Sylvain Nascimbene
Enhanced Magnetic Sensitivity with Non-Gaussian Quantum Fluctuations
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.122.173601
Physical Review Letters 122/17 2019-09-04

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