Imaging via Quantum Indistinguishability of Undetected Photons
Gabriela Barreto Lemos, Victoria Borish, Garrett D. Cole, Sven Ramelow, Radek Łapkiewicz, Anton Zeilinger · Research in Optical Sciences · 2014
Indistinguishability of photons that need not be detected results in a novel paradigm of quantum information processing. This confirms that for quantum interference it is important whether two possibilities could in principle be distinguished independent of detection.