Author(s): Changyan Zhu, Hsuan Lo, Jianbo Yu, Qi Jie Wang, and Y. D. Chong Reconstructive spectrometers are an emerging class of devices that combine complex light scattering with inference. Thus far, the physical determinants of their performance remain underexplored. Within the regime of chaotic or diffusive scattering, the noise-induced error for spectral reconstruction… [Phys. Rev. Lett. 137, 123802] Published Tue Sep 15, 2026