Transport of non-classical light mediated by topological domain walls in a SSH photonic lattice
O'Ryan Pérez, Gabriel (Universidad de Chile. Departamento de Física)
Medina Dueñas, Joaquin (Universitat Autònoma de Barcelona. Departament de Física)
Guzmán-Silva, Diego (Universidad de Chile. Departamento de Física)
Foa Torres, Luis E.F. (Universidad de Chile. Departamento de Física)
Hermann-Avigliano, Carla (Universidad de Chile. Departamento de Física)
Institut Català de Nanociència i Nanotecnologia

Data:	2024
Resum:	Advancements in photonics technologies have significantly enhanced their capability to facilitate experiments involving quantum light, even at room temperature. Nevertheless, fully integrating photonic chips that include quantum light sources, effective manipulation and transport of light minimizing losses, and appropriate detection systems remains an ongoing challenge. Topological photonic systems have emerged as promising platforms to protect quantum light properties during propagation, beyond merely preserving light intensity. In this work, we delve into the dynamics of non-classical light traversing a Su-Schrieffer-Heeger photonic lattice with topological domain walls. Our focus centers on how topology influences the quantum properties of light as it moves across the array. By precisely adjusting the spacing between waveguides, we achieve dynamic repositioning and interaction of domain walls, facilitating effective beam-splitting operations. Our findings demonstrate high-fidelity transport of non-classical light across the lattice, replicating known results that are now safeguarded by the topology of the system. This protection is especially beneficial for quantum communication protocols with continuous variable states. Our study enhances the understanding of light dynamics in topological photonic systems and paves the way for high-fidelity, topology-protected quantum communication.
Ajuts:	Agencia Estatal de Investigación PRE2021-097031
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Scientific reports, Vol. 14 (May 2024) , art. 12435, ISSN 2045-2322

DOI: 10.1038/s41598-024-63321-3
PMID: 38816484

8 p, 3.2 MB

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