Artículo
Enhanced energy harvesting near exceptional points in systems with (pseudo-) PT-symmetry
Fecha de publicación:
04/2021
Editorial:
Nature
Revista:
Communications Physics
ISSN:
2399-3650
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Exceptional point degeneracies, occurring in non-Hermitian systems, have challenged many well established concepts and led to the development of remarkable technologies. Here, we propose a family of autonomous motors whose operational principle relies on exceptional points via the opportune implementation of a (pseudo-)PT-symmetry and its spontaneous or explicit violation. These motors demonstrate a parameter domain of coexisting high efficiency and maximum work. In the photonic framework, they can be propelled by thermal radiation from the ambient thermal reservoirs and utilized as autonomous self-powered microrobots, or as micro-pumps for microfluidics in biological environments. The same designs can be also implemented with electromechanical elements for harvesting ambient mechanical (e.g., vibrational) noise for powering a variety of auxiliary systems. We expect that our proposal will contribute to the research agenda of energy harvesting by introducing concepts from mathematical and non-Hermitian wave physics.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IMIT)
Articulos de INST.DE MODELADO E INNOVACION TECNOLOGICA
Articulos de INST.DE MODELADO E INNOVACION TECNOLOGICA
Citación
Fernández, Lucas Jonatan; Kononchuk, Rodion; Kottos, Tsampikos; Enhanced energy harvesting near exceptional points in systems with (pseudo-) PT-symmetry; Nature; Communications Physics; 4; 1; 4-2021; 1-11
Compartir
Altmétricas