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Topological Polaritons in Semiconductor Photonic Crystal Structures: Exotic band structures and topological polariton states for quantum simulation and future optoelectronic devices

Total Cost €


EC-Contrib. €






 TOPOPOLIS project word cloud

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

protected    wells    etching    inherited    unidirectionally    gap    disorder    back    first    graphene    context    artificial    scaleable    coupling    particle    refinement    point    semiconductor    phenomena    ongoing    confinement    scattering    quantum    interacting    reaching    suited    create    magnetic    trap    techniques    structures    leads    energetic    topological    trivial    mass    optically    direct    generally    bosons    tunable    monitoring    microcavities    technologies    interactions    mode    observation    polariton    optical    propagating    emulation    physics    perform    hall    crystals    exciton    logics    versatibe    sidewall    emerge    crystal    electro    edge    realization    photonic    tuning    shed    damage    nature    simulation    designed    excitons    hexagonal    suitable    combined    platform    view    experimental    precise    hybrid    hamiltonian    serve    microcavity    polaritons    topopolis    active    solid    lattice    tool    light    emulate    dissipative   

Project "TOPOPOLIS" data sheet

The following table provides information about the project.


Organization address
address: SANDERRING 2
postcode: 97070

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 Germany [DE]
 Project website
 Total cost 159˙460 €
 EC max contribution 159˙460 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-03-01   to  2018-02-28


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

TOPOPOLIS aims at the development of semiconductor microcavity photonic crystal structures which are generally designed for the realization of solid state quantum simulation and specifically for the first ever observation of topological exciton-polariton edge states. With the ongoing refinement of semiconductor growth and etching techniques it has become possible to create microcavity photonic crystals to study new, complex and non-trivial phenomena of light-matter coupling. Here, polaritons in e.g. hexagonal lattice structures (artificial graphene) can serve as a tool to perform quantum simulation and to emulate the systems Hamiltonian. Polaritons are particularly well suited, because of their tunable mass and particle interactions, inherited from the excitons, as well as their open dissipative nature which allows a direct monitoring. In this context it has been proposed that with a suitable photonic crystal design a topological gap can emerge under magnetic field. This topological gap leads to optical quantum-Hall-like edge states that allow for an unidirectionally propagating polariton mode, protected from back-scattering. This exciting goal is of great interest as it will shed light into the physics of topological hybrid interacting bosons as well as from an application point of view. Reaching this goal most importantly requires very high Q-factor microcavities with low overall energetic disorder as well as low etching-induced sidewall damage. In this project, a scaleable photonic-trap method is proposed that allows for a precise control of the confinement potential in the microcavity photonic crystal and does not require an etching into the optically active quantum wells. This approach will be combined with electro-optical tuning to create a versatibe platform for quantum emulation and will allow for the experimental observation of topological polariton edge states that have the potential to enable new technologies in quantum simulation and logics.


year authors and title journal last update
List of publications.
2018 M. Klaas, H. Flayac, M. Amthor, I. G. Savenko, S. Brodbeck, T. Ala-Nissila, S. Klembt, C. Schneider, S. Höfling
Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates
published pages: 17401, ISSN: 0031-9007, DOI: 10.1103/physrevlett.120.017401
Physical Review Letters 120/1 2019-06-13
2017 K. Winkler, H. Flayac, S. Klembt, A. Schade, D. Nevinskiy, M. Kamp, C. Schneider, S. Höfling
Exciton-polariton flows in cross-dimensional junctions
published pages: 1-5, ISSN: 2469-9950, DOI: 10.1103/physrevb.95.201302
Physical Review B 95/20 2019-06-13
2017 S. Klembt, T. H. Harder, O. A. Egorov, K. Winkler, H. Suchomel, J. Beierlein, M. Emmerling, C. Schneider, S. Höfling
Polariton condensation in S - and P -flatbands in a two-dimensional Lieb lattice
published pages: 231102, ISSN: 0003-6951, DOI: 10.1063/1.4995385
Applied Physics Letters 111/23 2019-06-13
2018 H. Suchomel, S. Klembt, T. H. Harder, M. Klaas, O. A. Egorov, K. Winkler, M. Emmerling, S. Hoefling, C. Schneider
An electrically pumped polaritonic lattice simulator
published pages: 1-16, ISSN: , DOI: 2019-06-13

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