Interaction-free, single-pixel quantum imaging with undetected photons

This paper presents a novel quantum imaging protocol that eliminates the need for object-photon interaction, direct detection, and spatially resolved detectors. By integrating a single-photon Michelson interferometer into a nonlinear interferometer based on induced coherence and utilizing single-pixel imaging, the authors demonstrate interaction-free, single-pixel quantum imaging using undetected photons. This method minimizes detection requirements and enables the characterization of delicate samples at silicon-detectable wavelengths, paving the way for applications in imaging sensitive specimens.

Yiquan Yang, Hong Liang, Xiaze Xu, Lijian Zhang, Shining Zhu, Xiao-song Ma