emergenTopo | Emergent topology in photon fluids

Summary
The discovery of topological phases of matter has revolutionised the understanding of solid state physics in the past 40 years. Their main hallmark is the appearance of propagating edge states robust to backscattering at the interface between two solids of different topologies. This paradigm has been able to successfully ex-plain electronic phenomena such as the universal edge transport in the quantum Hall effect and the exist-ence of topological insulators. Recently, these concepts have been brought to photonic materials. The flexi-bility to implement engineered Hamiltonians along with the direct optical access to all relevant observables, has made of photonic systems an extraordinary platform for the study of topological phenomena, and prom-ises exceptional applications in integrated photonics.

So far, the vast majority of topological phases observed in any system (solid state, cold atoms or photons) arise from single particle dynamics. The experimental observation of new topological phases emerging from particle-particle interactions remains one of the greatest challenges of topological physics. The first goal of this project is to experimentally unveil novel topological phases in photonic lattices emerging from photon-photon interactions. A second scenario of high potential interest is that of Floquet topological sys-tems, in which topological phases are induced when a trivial system is periodically driven in time. The sec-ond goal of this project is to implement novel topological phases in photonic lattices subject to periodic temporal modulations, and to explore their behaviour in the presence of interactions. To attain these goals, we will employ different photonic platforms with significant photon nonlinearities, and we will develop a new ultrafast detection technique capable of resolving the dynamics of topological excitations. This project will unlock the door to the new field of nonlinear topological photonics.
Unfold all
/
Fold all
More information & hyperlinks
Web resources: https://cordis.europa.eu/project/id/865151
Start date: 01-06-2020
End date: 31-05-2025
Total budget - Public funding: 1 999 973,00 Euro - 1 999 973,00 Euro
Cordis data

Original description

The discovery of topological phases of matter has revolutionised the understanding of solid state physics in the past 40 years. Their main hallmark is the appearance of propagating edge states robust to backscattering at the interface between two solids of different topologies. This paradigm has been able to successfully ex-plain electronic phenomena such as the universal edge transport in the quantum Hall effect and the exist-ence of topological insulators. Recently, these concepts have been brought to photonic materials. The flexi-bility to implement engineered Hamiltonians along with the direct optical access to all relevant observables, has made of photonic systems an extraordinary platform for the study of topological phenomena, and prom-ises exceptional applications in integrated photonics.

So far, the vast majority of topological phases observed in any system (solid state, cold atoms or photons) arise from single particle dynamics. The experimental observation of new topological phases emerging from particle-particle interactions remains one of the greatest challenges of topological physics. The first goal of this project is to experimentally unveil novel topological phases in photonic lattices emerging from photon-photon interactions. A second scenario of high potential interest is that of Floquet topological sys-tems, in which topological phases are induced when a trivial system is periodically driven in time. The sec-ond goal of this project is to implement novel topological phases in photonic lattices subject to periodic temporal modulations, and to explore their behaviour in the presence of interactions. To attain these goals, we will employ different photonic platforms with significant photon nonlinearities, and we will develop a new ultrafast detection technique capable of resolving the dynamics of topological excitations. This project will unlock the door to the new field of nonlinear topological photonics.

Status

SIGNED

Call topic

ERC-2019-COG

Update Date

27-04-2024
Images
No images available.
Geographical location(s)
Structured mapping
Unfold all
/
Fold all
Horizon 2020
H2020-EU.1. EXCELLENT SCIENCE
H2020-EU.1.1. EXCELLENT SCIENCE - European Research Council (ERC)
ERC-2019
ERC-2019-COG