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TOPOPOLIS SIGNED

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. €

Partnership

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Outcomes and
results

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.

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

Project "TOPOPOLIS" data sheet

The following table provides information about the project.

Coordinator	JULIUS-MAXIMILIANS-UNIVERSITAT WURZBURG Organization address address: SANDERRING 2 city: WUERZBURG postcode: 97070 website: http://www.uni-wuerzburg.de 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	https://www.physik.uni-wuerzburg.de/tep/research/projects/topopolis-project/
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

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	JULIUS-MAXIMILIANS-UNIVERSITAT WURZBURG JULIUS-MAXIMILIANS-UNIVERSITAT WURZBURG Organization address address: SANDERRING 2 city: WUERZBURG postcode: 97070 website: http://www.uni-wuerzburg.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (WUERZBURG)	coordinator	159˙460.00

Map

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.

Publications

List of publications.
year	authors and title	journal	last update
2018	M. Klaas, H. Flayac, M. Amthor, I.â€‰G. Savenko, S. Brodbeck, T. Ala-Nissila, S. Klembt, C. Schneider, S. HÃ¶fling 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. HÃ¶fling 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. HÃ¶fling 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:	arXiv.org	2019-06-13

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