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Interacting polaritons in two-dimensional electron systems

Total Cost €


EC-Contrib. €






 POLTDES project word cloud

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

reversible    unravelling    splitting    electrons    light    ground    constitute    derive    arsenide    cooper    intrinsic    observation    photon    incompressible    excitons    concurrently    gas    search    coupling    effect    doped    principal    polaritons    pair    inside    berry    exhibit    hall    gallium    charged    superconductivity    parallel    fractional    absorption    dependence    mechanism    monolayer    topological    interaction    quantum    magneto    nonlinear    realize    excitations    transport    interactions    photons    dimensional    positioned    modulation    combine    besides    nonequilibrium    explore    exciton    transition    correlated    blockade    microcavities    valley    filling    dichalcogenides    leads    mixed    microcavity    physics    curvature    demonstrating    central    mediated    nature    cavity    polariton    paving    revolutionize    quasiparticles    realization    free    superfluidity    compressible    optical    metal    played    interplay    interacting    electron    condensation    body    reciprocal    semiconductors    mostly    regime   

Project "POLTDES" data sheet

The following table provides information about the project.


Organization address
address: Raemistrasse 101
postcode: 8092

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 Switzerland [CH]
 Total cost 2˙482˙250 €
 EC max contribution 2˙482˙250 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-ADG
 Funding Scheme ERC-ADG
 Starting year 2015
 Duration (year-month-day) from 2015-11-01   to  2020-10-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Reversible coupling of excitons and photons in a microcavity leads to the formation of mixed light-matter quasiparticles, called cavity-polaritons. Weakly interacting polaritons constitute a rich system for studying nonequilibrium condensation and superfluidity. While exciton-polaritons have been studied mostly in intrinsic semiconductors with no free electrons, two-dimensional modulation-doped semiconductors with strong interactions between electrons have played a central role in unravelling many-body physics using transport. In this project, we combine these two fields of research and explore the complex interplay between cavity-polaritons and strongly correlated states of two dimensional electrons embedded inside microcavities. Our principal objective is the realization of polariton mediated superconductivity of electrons in gallium arsenide. Besides demonstrating a new mechanism for Cooper-pair formation, such an observation could revolutionize the search for systems that exhibit topological order. In a reciprocal approach, we will exploit the many-body nature of optical excitations in a two-dimensional electron gas to enhance polariton-polariton interactions. This will allow us to reach the polariton blockade regime, paving the way for realization of nonequilibrium strongly interacting polaritons. In parallel, we will explore cavity-magneto-polariton excitations out of fractional quantum Hall ground states: the objective in this part is to use the strong filling factor dependence of polariton splitting to realize nonlinear optical devices which derive their photon-photon interaction from light-absorption induced transition between compressible and incompressible ground states. Concurrently, we will study charged-exciton-polaritons in monolayer transition metal dichalcogenides positioned inside a microcavity, where a large polariton Berry-curvature allows for the observation of valley Hall effect and could be used to realize topological polaritons.


year authors and title journal last update
List of publications.
2017 Patrick Back, Meinrad Sidler, Ovidiu Cotlet, Ajit Srivastava, Naotomo Takemura, Martin Kroner, Atac ImamoÄŸlu
Giant Paramagnetism-Induced Valley Polarization of Electrons in Charge-Tunable Monolayer MoSe 2
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.118.237404
Physical Review Letters 118/23 2019-07-05
2018 Ovidiu Cotlet, Falko Pientka, Richard Schmidt, Gergely Zarand, Eugene Demler, Atac Imamoglu
Transport of neutral optical excitations using electric fields
published pages: , ISSN: , DOI:
arxiv 2019-07-05
2017 Sina Zeytinoǧlu, Charlaine Roth, Sebastian Huber, Atac İmamoğlu
Atomically thin semiconductors as nonlinear mirrors
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.96.031801
Physical Review A 96/3 2019-07-05
2018 Emre Togan, Hyang-Tag Lim, Stefan Faelt, Werner Wegscheider, Atac Imamoglu
Enhanced Interactions between Dipolar Polaritons
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.121.227402ï‚Ž
Physical Review Letters 121/22 2019-07-05
2018 Patrick Back, Sina Zeytinoglu, Aroosa Ijaz, Martin Kroner, Atac ImamoÄŸlu
Realization of an Electrically Tunable Narrow-Bandwidth Atomically Thin Mirror Using Monolayer MoSe 2
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.120.037401
Physical Review Letters 120/3 2019-07-05
2017 Sina Zeytinoğlu, Ataç İmamoğlu, Sebastian Huber
Engineering Matter Interactions Using Squeezed Vacuum
published pages: , ISSN: 2160-3308, DOI: 10.1103/PhysRevX.7.021041
Physical Review X 7/2 2019-07-05
2017 Hyang-Tag Lim, Emre Togan, Martin Kroner, Javier Miguel-Sanchez, Atac ImamoÄŸlu
Electrically tunable artificial gauge potential for polaritons
published pages: 14540, ISSN: 2041-1723, DOI: 10.1038/ncomms14540
Nature Communications 8 2019-07-05
2016 Meinrad Sidler, Patrick Back, Ovidiu Cotlet, Ajit Srivastava, Thomas Fink, Martin Kroner, Eugene Demler, Atac Imamoglu
Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
published pages: 255-261, ISSN: 1745-2473, DOI: 10.1038/nphys3949
Nature Physics 13/3 2019-07-05
2016 Ovidiu Cotleţ, Sina Zeytinoǧlu, Manfred Sigrist, Eugene Demler, Ataç Imamoǧlu
Superconductivity and other collective phenomena in a hybrid Bose-Fermi mixture formed by a polariton condensate and an electron system in two dimensions
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.93.054510
Physical Review B 93/5 2019-07-05
2018 Sylvain Ravets, Patrick Knüppel, Stefan Faelt, Ovidiu Cotlet, Martin Kroner, Werner Wegscheider, Atac Imamoglu
Polaron Polaritons in the Integer and Fractional Quantum Hall Regimes
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.120.057401
Physical Review Letters 120/5 2019-07-05
2018 Mathias Van Regemortel, Sylvain Ravets, Atac Imamoglu, Iacopo Carusotto, Michiel Wouters
Engineering Gaussian states of light from a planar microcavity
published pages: , ISSN: 2542-4653, DOI: 10.21468/SciPostPhys.5.1.013
SciPost Physics 5/1 2019-04-10
2018 Aymeric Delteil, Thomas Fink, Anne Schade, Sven Höfling, Christian Schneider, Ataç Imamoğlu
Quantum correlations of confined exciton-polaritons
published pages: , ISSN: , DOI: 2019-04-10
2018 Sina ZeytinoÄŸlu, Atac Ä°mamoÄŸlu
Interaction-induced photon blockade using an atomically thin mirror embedded in a microcavity
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.98.051801ï‚Ž
Physical Review A 98/5 2019-04-10

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