Few-Photon Bound States in the Continuum
From QCLab
More actions
- Speaker: Yue Chang (Beijing Academy of Quantum Information Science, China)
- Event: Quantum Technology Workshop 2026
Bound states in the continuum (BICs) can confine photonic excitations in open systems without relying on conventional cavities or photonic band gaps, making them promising for long-lived quantum storage and few-photon control. In this talk, I will present our recent work on single- and two-photon BICs. For single-photon BICs, we develop a capture–reshape–release protocol based on temporal control of a giant atom coupled to a waveguide. For two-photon states, we establish a no-go theorem for interaction-active BICs supported by a single emitter. We then investigate two-photon quasi-BICs in giant-atom systems and determine how their decay rates scale with the system parameters.