Topologically Protected Bound States in the Continuum in the Su–Schrieffer–Heeger Chain

DIPC Seminars

Speaker

Pedro Orellana
Universidad Técnica Federico Santa María, Chile

When

2026/11/05
12:00

Place

DIPC Josebe Olarra Seminar Room

Host

Andrés Ayuela

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Bound states in the continuum, originally proposed within the framework of quantum mechanics, have since been observed in a variety of physical contexts, including optics, acoustics, and related fields. Bound states in the continuum that are protected by continuous symmetries are of particular interest because their stability makes them resistant to structural imperfections and material disorder. In this study, we demonstrate the existence of topologically protected bound states in the continuum by coupling a finite Su–Schrieffer–Heeger (SSH) chain to a metallic lead. These states are characterized by distinct features in the system's electrical response, providing a direct indication of their topological origin. The inherent robustness of these topologically protected states highlights their potential applications in fault-tolerant quantum information processing and in the design of advanced electronic and photonic devices.

References:

1. Topological bound states in the continuum. Dunkan Martínez, Rodrigo P. A. Lima, Alexander López, Francisco Domínguez-Adame, Pedro A. Orellana, arXiv:2601.01178.

Zoom: https://dipc-org.zoom.us/j/96796153480
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