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Quantum Phase Imaging using Spatial Entanglement by Lu, Chien-Hung; Reichert, Matthew; Sun, Xiaohang; Fleischer, Jason W. is a scholarly article available to read on EtoBox.

What is Quantum Phase Imaging using Spatial Entanglement about?

Entangled photons have the remarkable ability to be more sensitive to signal and less sensitive to noise than classical light. Joint photons can sample an object collectively, resulting in faster phase accumulation and higher spatial resolution, while common components of noise can be subtracted. Even more, they can accomplish this while physically separate, due to the nonlocal properties of quantum mechanics. Indeed, nearly all quantum optics experiments rely on this separation, using individual point detectors that are scanned to measure coincidence counts and correlations. Scanning, however, is tedious, time consuming, and ill-suited for imaging. Moreover, the separation of beam paths adds complexity to the system while reducing the number of photons available for sampling, and the multiplicity of detectors does not scale well for greater numbers of photons and higher orders of entanglement. We bypass all of these problems here by directly imaging collinear photon pairs with an electron-multiplying CCD camera. We show explicitly the benefits of quantum nonlocality by engineering the spatial entanglement of the illuminating photons and introduce a new method of correlation measur

Author

Lu, Chien-Hung; Reichert, Matthew; Sun, Xiaohang; Fleischer, Jason W.

Published

2015

Language

EN