Periodic Reporting for period 2 - TOCHA (Dissipationless topological channels for information transfer and quantum metrology)
Reporting period: 2020-01-01 to 2021-06-30
TOCHA will investigate topological protection in novel materials and nanoscopic structures to empower electrons, phonons and photons to flow with little or no dissipation and, ultimately, crosslink them within a hybrid platform. This will entail the design of novel topological photonic/phononic waveguides and the engineering of disruptive heterostructures elaborated from the combination of topological insulators and ferromagnetic materials.
Thanks to its high interdisciplinary embodiment involving electronic materials, optics, thermal management and metrology, TOCHA will help advance all levels of the value chain, from fundamental science to engineering and technology.
i) To develop low-loss waveguides based on photonic crystals hosting topological edge states with arbitrary shape.
ii) To advance the use of topological-insulator materials and devices to higher operating temperatures and currents
iii) To develop quantum resistance standards based on the QAHE.
iv) To gain a radically new fundamental knowledge of the interactions and correlations between photons, phonons and electrons in hybrid topological systems.
i) Novel solutions to transfer information with low dissipation.
ii) Topology in nano-photonics and -phononics devices, which are expected to significantly improve their performance and bring new functionalities.
iii) New techniques to control photon-phonon coupling, which is of paramount importance not only in the quantum regime but also for optomechanics.
iv) Novel approaches to quantum resistance standards for metrology, which might represent the first concrete application of TIs in the world.