Descrizione del progetto
Abbattere le barriere per i dispositivi fotonici innovativi
La topologia costituisce una branca della matematica che esamina le forme geometriche resistenti alla deformazione, quali una tazza da caffè gommosa che mantiene il foro del manico indipendentemente da quando la si schiacci. Negli ultimi decenni, la topologia è stata applicata con successo ai materiali. Gli elettroni «protetti topologicamente» hanno portato agli isolatori topologici che forniscono isolamento all’interno e conduzione all’esterno, dove gli elettroni resistono agli ostacoli al proprio flusso. Più di recente, sono stati oggetto di studio alcuni fenomeni simili utilizzando i fotoni. Grazie al sostegno del programma di azioni Marie Skłodowska-Curie, il progetto TEBLA sta analizzando gli effetti topologici emergenti nei reticoli fotonici che potrebbero portare a nuovi fenomeni laser e fluidi topologici di luce.
Obiettivo
Controlling and manipulating quantum matter is a fast-growing research topic that could revolutionise technology and influence many aspects of our daily life. A promising step in this direction is to use topological concepts to tune physical properties of matter and to exploit novel phenomena useful to build new physical devices. In the last decade, topology have been extensively studied in the context of quantum many-body systems, a revolution that has led to the discovery of the topological insulators. Similarly, the Fubini-Study metric has just begun to show its physical meaning and role played in some quantum phenomena, but a lot more remains to be investigated. In this Action, I will study how topological and geometrical effects emerge in the physics of bosons in lattices. I will first address the geometrical contribution in the dynamics of two-body bound states, and then I shall identify conditions for enhancing inter-particle interactions on a full many-body system. I will apply these findings on photonic lattice systems and investigate how non-trivial quantum geometry and topology can lead to novel lasing phenomena. The nature of the work, being based on a combination of expertise, will have a strong interdisciplinary character. The research will be done at Aalto University in the Quantum Dynamics group led by Academy Professor Päivi Törmä, with the unique and exciting opportunity for me to work on the theory in a side by side collaboration with the experimentalists of the group. The expected impact of this research will advance our understanding of the topological properties of bosons in lattices, towards the exploration of geometrically-induced ultrafast lasers and strongly correlated topological fluids of light.
Campo scientifico
Parole chiave
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Meccanismo di finanziamento
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinatore
02150 Espoo
Finlandia