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Report

Teaser, summary, work performed and final results

Periodic Reporting for period 1 - NHQWAVE (Non-Hermitian Quantum Wave Engineering)

Teaser

Starting on March 1, 2016 (as an EC-supported MSCA-RISE-2015 - Marie Skłodowska-Curie Research and Innovation Staff Exchange (RISE) project; Project number: 691209), the Non-Hermitian Quantum Wave Engineering (NHQWAVE) project’s main objective is to investigate, develop and...

Summary

Starting on March 1, 2016 (as an EC-supported MSCA-RISE-2015 - Marie Skłodowska-Curie Research and Innovation Staff Exchange (RISE) project; Project number: 691209), the Non-Hermitian Quantum Wave Engineering (NHQWAVE) project’s main objective is to investigate, develop and implement new resonant phenomena in novel complex non-hermitian system configurations, which can address the challenges of future optical devices. The project’s research activity and objectives focus on the non-Hermitian photonics and parity-time (PT) symmetry in optics and condensed matter physics, and comprise the following five subprojects:
1. Symmetry breaking and exceptional points in complex lasers.
2. Superconducting quantum metamaterials.
3. Asymmetric wave transport and topological phenomena in optical lattices.
4. Computational methods of condensed matter physics for non-hermitian photonic media.
5. Nonlinearity and non-hermiticity in disordered lattices and multimode fibers.
The NHQWAVE project comprises research collaboration between three European (MS/AC) beneficiaries, namely the University of Crete (Center for Quantum Complexity and Nanotechnology, Physics Department; which is the project’s coordinator), Technion-Israel Institute of Technology, and Technische Universitaet Wien (TU-Wien), as well as five partners USA (Harvard U., Yale U., Penn State U., Washington University in Saint Louis, U. of Central Florida (CREOL, The College of Optics and Photonics).

Work performed

The project’s activity has been conducted in all Work Packages (WPs) WP1-WP8. The main NHQWAVE scientific results, which have been achieved during the first two years of the lifetime of the project, have been presented in 23 journal and conference proceedings publications. Secondments of the project’s researchers have successfully taken place. All deliverables due to be submitted, have been successfully uploaded to the Participant Portal. Milestones “Constant Intensity Waves in Disordered Media” (M12) and “Theoretical and experimental realization of topologically protected edge states in optical PT symmetric lattices and for the direct measuring of topological numbers” have been achieved. The first milestone comprises the theoretical study of the possibility of penetrating a disorder medium by a constant intensity wave (this is a purely non-hermitian effect and is related to cloaking and unidirectional invisibility). The second milestone comprises the theoretical and experimental realization of topologically protected edge states lasers and for the first experimental demonstration of the concept of “topological laser”.

The NHQWAVE project coordinator, the University of Crete (Physics Department, Center for Quantum Complexity and Nanotechnology) organized the conference entitled “Non-Hermitian Photonics in Complex Media: PT-symmetry and beyond” on 15-18 June 2016, in Heraklion, Greece, with 41 international participants, including NHQWAVE’s researchers; with a concurrent training workshop for graduate students taking place at that time. The midterm review has also been taken place. NHQWAVE researchers have delivered public talks and research seminars and have participated in conferences and workshops in the project’s thematic research areas, to disseminate the project’s research findings. The project’s website has been operational from the first month. NHQWAVE has been collaborated with the organizers of the international conference entitled “Nonlinear Localization in Lattices”, which will be organized during 18-22/06/2018, in Spetses, Greece, in encompassing research areas directly related to the NHQWAVE project, especially the sessions dedicated to “Non-Hermitian Wave Physics” (with a concurrent training workshop for graduate students organized as part of the dissemination activities of the project).

Final results

NHQWAVE is investigating and developing new resonant phenomena in novel complex non-hermitian system configurations, which address the challenges of future optical devices, and, as such, has the capability to push the technology frontiers, offering the scientific background for the implementation of innovative devices to expand the state-of-the-art in industries with significant socio-economic impact and wider societal implications, as, i.e., the information and telecommunications industrial sector. The project’s research activity and objectives focus on the non-Hermitian photonics and parity-time (PT) symmetry in optics and condensed matter physics. More specifically, the recent results regarding the topological lasers and the constant-intensity waves in non-Hermitian complex media (both topics include theoretical and experimental studies) are a direct outcome of the NHQWAVE project way beyond the state of the art.

Website & more info

More info: http://qcn.physics.uoc.gr/nhqwave.